# EMD Retrieve

Not currently implemented.

Endpoint: GET /air/emds/getbylocator
Version: 11.35.2
Security: bearerAuth

## Query parameters:

  - `Locator` (string, required)
    The booking locator code used to retrieve a Reservation

  - `locatorType` (string)
    Specifies the type of reservation ID

  - `source` (string)
    Specifies a unique identifier to indicate the source system which generated the resId.

  - `sourceContext` (string)
    Specifies the context of the source.

  - `otaType` (string)
    Used for codes in the OpenTravel Code tables. Possible values of this pattern are 1, 101, 101.EQP, or 101.EQP.X.

  - `creationDate` (string)
    PNR creation Date

## Header parameters:

  - `TraceId` (string)
    Identifier used to correlate Air API invocations across a multi-call business flows.

  - `XAUTH_TRAVELPORT_ACCESSGROUP` (string)
    Identifies the Travelport access group with which the caller is associated

  - `travelportPlusSessionIdentifier` (string)
    travelportPlusSessionIdentifier used to maintain an established agency session

  - `TVP-PCC-Core` (string)
    Allows user to pass PCC instead of Access Group ID

## Response 200 fields (application/json):

  - `EMDListResponse` (object)
    The response of a EMD list endpoint request.

  - `EMDListResponse.EMDID` (array)

  - `EMDListResponse.EMDID.@type` (string, required)
    Discriminator classes EMDID, EMD, or EMDSummary
    Example: EMD

  - `EMDListResponse.EMDID.id` (string)
    EMD reference ID.

  - `EMDListResponse.EMDID.EMDRef` (string)

  - `EMDListResponse.EMDID.Identifier` (object)
    A globally unique identifier key often used to reference a given option (such as Pricing, Booking, Rules, or additional workflows) or to retrieve information (such as Hotel pagination).

  - `EMDListResponse.EMDID.Identifier.value` (string)
    Unique offer identifier that can be sent in subsequent payload requests to reference this offer.
When used for reference flight calls, the CatalogProductOfferingsIdentifier will be the transaction identifier from the Search, Next Leg Search, or Flight Specific Search response in CatalogProductOfferings/Identifier/value.
If you choose to pull the CatalogProductOfferingsIdentifier from the Price response instead (OfferListResponse/Identifier/value), either full or reference payload, please note for subsequent Add Offer requests you must remove the _PC appended to the end of the value in the AirPrice response (e.g., change value: '93d2091d-3d04-48ab-8091-6ae1525f02ea_PC' to value: '93d2091d-3d04-48ab-8091-6ae1525f02ea').
When building an AirPrice or Add Offer reference payload request:
- Look for the CatalogProductOfferingIdentifier (ex: o1) in a Search response at CatalogProductOfferings/CatalogProductOffering/id or a Price response at OfferListResponse/OfferID/id.
- Look for the ProductIdentifier (ex: p0) in a Search response at CatalogProductOfferings/CatalogProductOffering/ProductBrandOptions/ProductBrandOffering/Product/productRef or from a Price response at OfferListResponse/OfferID/Product/id.

When returned from a Workbench, this value is the workbench identifier that must be sent in all subsequent requests for this workbench session.
When returned from Air Exchange Eligibility, value is the ticket number sent with the eligibility request.
When used specifically for form of payment, the value will begin with the characters 'FOP'. Similarly, the OfferIdentifier associated will begin with the character 'O'.
For Hotel Create Reservation (Reference Payload), send the value from the Availability response in CatalogOffering/id or the value from SearchComplete returned in propertyItems/lowestPublicAvailableRate/rateKey/value.
Results from Hotel Availability and Hotel SearchComplete are stored in the cache for 30 minutes. If the offers expire before booking, you must send a new request.
    Example: A0656EFF-FAF4-456F-B061-0161008D7C4E

  - `EMDListResponse.EMDID.Identifier.authority` (string)
    Name of the supplier system that created this identifier - the source of information.  
For AirPrice, please note that GDS offers return the value 'Travelport' in authority while NDC offers return the carrier code of the issuing NDC carrier.  
When returned from Air Exchange Eligibility, authority is always 'Travelport' as the transaction issuer.  
For Hotels, authority indicates which supplier returned the lowest available rate for that property: either 'TVPT' (Travelport) or 'BKNG' (booking.com). Booking.com access requires additional provisioning and a direct agreement with the supplier. Authority is not returned if the property is closed or returns an error.  
For Hotel Create Reservation (Full Payload) and Sync Reservation send the value from the Availability response in CatalogOffering/Identifier/authority for the instance you want to book.
    Example: TVPT

  - `EMDListResponse.EMDID.PersonName` (object, required)
    Travelport+ limits the combination of Given and Surname to 22 characters. Given name must have at least one character. Any PersonName exceeding 22 characters is truncated in the response.

  - `EMDListResponse.EMDID.PersonName.@type` (string, required)
    Discriminator classes PersonName or PersonNameDetail
    Example: PersonNameDetail

  - `EMDListResponse.EMDID.PersonName.Prefix` (string)
    Salutation of honorific (e.g. Mr., Mrs., Ms., Miss, Dr.)
    Example: Mr

  - `EMDListResponse.EMDID.PersonName.Given` (string)
    Traveler first or given name.
    Example: John

  - `EMDListResponse.EMDID.PersonName.Middle` (string)
    Traveler middle name.
    Example: Erick

  - `EMDListResponse.EMDID.PersonName.Surname` (string, required)
    Traveler last name or surname.
    Example: Smith

  - `EMDListResponse.EMDID.ReservationLocator` (array)

  - `EMDListResponse.EMDID.ReservationLocator.value` (string)
    The external or supplier-issued locator.
    Example: WTR45G

  - `EMDListResponse.EMDID.ReservationLocator.supplierCode` (string)
    Supplier Code; generally the releated IATA code for the carrier or agency.
    Example: AA

  - `EMDListResponse.EMDID.ReservationLocator.supplierName` (string)
    Name of the supplier
    Example: American Airlines

  - `EMDListResponse.EMDID.AgencyInfo` (object, required)
    Detail of the travel agency that issues the ticket

  - `EMDListResponse.EMDID.AgencyInfo.ticketedDate` (string)
    Ticketed date
    Example: 2026-04-05

  - `EMDListResponse.EMDID.AgencyInfo.name` (string, required)
    Name of the Agency
    Example: Alpha travel

  - `EMDListResponse.EMDID.AgencyInfo.place` (string)
    Place of the agency
    Example: Marietta

  - `EMDListResponse.EMDID.AgencyInfo.ticketingPCC` (string)
    Ticketing PCC
    Example: 1CR

  - `EMDListResponse.EMDID.AgencyInfo.code` (string)
    Agency code
    Example: 12430870

  - `EMDListResponse.EMDID.AgencyInfo.salesType` (string)
    Sales type
    Example: Ticketing

  - `EMDListResponse.EMDID.AgencyInfo.ticketingCountry` (string, required)
    Ticketing country
    Example: US

  - `EMDListResponse.EMDID.AgencyInfo.ticketingCity` (string, required)
    Ticketing city
    Example: NYC

  - `EMDListResponse.EMDID.EMDSegment` (array, required)

  - `EMDListResponse.EMDID.EMDSegment.@type` (string, required)
    Example: EMDSegment

  - `EMDListResponse.EMDID.EMDSegment.sequence` (integer, required)
    Sequence of EMDSegment

  - `EMDListResponse.EMDID.EMDSegment.quantity` (integer)
    The quantity of the ancillary available on this EMDSegment

  - `EMDListResponse.EMDID.EMDSegment.EMDDescription` (object)
    A description of the ancillary with two description codes

  - `EMDListResponse.EMDID.EMDSegment.EMDDescription.value` (string)
    Example: First checked bag

  - `EMDListResponse.EMDID.EMDSegment.EMDDescription.code` (string)
    A description of the ancillary with two description codes
    Example: BG

  - `EMDListResponse.EMDID.EMDSegment.EMDDescription.subCode` (string)
    EMD number sub code
    Example: 02C

  - `EMDListResponse.EMDID.EMDSegment.EMDDescription.codeContext` (string)
    Code context
    Example: ATPCO

  - `EMDListResponse.EMDID.EMDSegment.Amount` (object)
    Amount represents the cost applied

  - `EMDListResponse.EMDID.EMDSegment.Amount.@type` (string)

  - `EMDListResponse.EMDID.EMDSegment.Amount.currencySource` (string)
    The system requesting or returning the currency code specified in the attribute
    Enum: "Supplier", "Charged", "Requested"

  - `EMDListResponse.EMDID.EMDSegment.Amount.CurrencyCode` (object)
    Currency codes are the three-letter alphabetic codes that represent the various currencies used throughout the world.  
Unless changed in the request, the currency is the default associated with your provisioned PCC from Travelport.  
For Hotel: SourceCurrency is based on the location of the hotel and used for all rates in the response. TargetCurrency is the currency code sent in the request in requestedCurrency.

  - `EMDListResponse.EMDID.EMDSegment.Amount.CurrencyCode.value` (string)
    An ISO 4217 currency code.
    Example: USD

  - `EMDListResponse.EMDID.EMDSegment.Amount.CurrencyCode.codeAuthority` (string)
    Currency code authority
    Example: ISO 4217

  - `EMDListResponse.EMDID.EMDSegment.Amount.CurrencyCode.decimalPlace` (integer)
    Number of decimal places for the currency.
    Example: 4

  - `EMDListResponse.EMDID.EMDSegment.Amount.CurrencyCode.decimalAuthority` (string)
    Currency code decimal authority
    Example: ISO 4217

  - `EMDListResponse.EMDID.EMDSegment.Amount.Base` (number)
    The base price prior to all applicable taxes or fees of a product, such as the amount for a room or fare for a flight (one passenger).
    Example: 120.2

  - `EMDListResponse.EMDID.EMDSegment.Amount.Taxes` (object)
    Summary of all individual taxes. Child class TaxesDetail provides the breakdown of individual taxes.

  - `EMDListResponse.EMDID.EMDSegment.Amount.Taxes.@type` (string, required)
    Discriminator class is TaxesDetail
    Example: TaxesDetail

  - `EMDListResponse.EMDID.EMDSegment.Amount.Taxes.TotalTaxes` (number)
    A monetary amount, representing the total of all taxes included in this offer. Supports up to 4 decimal places; decimal place must be included.
    Example: 330.1

  - `EMDListResponse.EMDID.EMDSegment.Amount.Taxes.TaxInfo` (array)
    Returned for TripChange APIS only.

  - `EMDListResponse.EMDID.EMDSegment.Amount.Taxes.TaxInfo.@type` (string)
    Example: TaxInfo

  - `EMDListResponse.EMDID.EMDSegment.Amount.Taxes.TaxInfo.TaxCode` (string, required)
    The tax code
    Example: XF

  - `EMDListResponse.EMDID.EMDSegment.Amount.Taxes.TaxInfo.Amount` (number, required)
    The amount of the tax applied

  - `EMDListResponse.EMDID.EMDSegment.Amount.Taxes.TaxInfo.TaxBreakdown` (array, required)
    The breakdown of the tax for this tax code

  - `EMDListResponse.EMDID.EMDSegment.Amount.Fees` (object)
    Includes TotalFees object to return the sum total of any fees.  
May include array of Fee objects to break down individual fees.  
Child class FeesDetail may also include a breakdown of the individual fees.

  - `EMDListResponse.EMDID.EMDSegment.Amount.Fees.@type` (string, required)
    Discriminator. Child class FeesDetail
    Example: FeesDetail

  - `EMDListResponse.EMDID.EMDSegment.Amount.Fees.TotalFees` (number)
    Total fees included in the TotalPrice. Supports up to 4 decimal places; decimal place needs to be included.
    Example: 111.11

  - `EMDListResponse.EMDID.EMDSegment.Amount.Fees.TotalAdditionalFeesPayableLocally` (number)
    Fees due separately at the property. Expected to be paid in local currency. These fees are not included in the Offer TotalPrice.
    Example: 2.1

  - `EMDListResponse.EMDID.EMDSegment.Amount.Total` (number)
    Specifies the total price including base + taxes + fees.
In PriceBreakdownHospitality, this total is for a given group of nights.
In PriceBreakdownAir this is the total of base cost and all fees and taxes for one passenger of this PTC type.
    Example: 230.13

  - `EMDListResponse.EMDID.EMDSegment.Amount.approximateInd` (boolean)
    if true this amount has been converted from the original amount
    Example: true

  - `EMDListResponse.EMDID.EMDSegment.Status` (string)
    The EMD status.
    Enum: "Open", "Refund", "Used", "Void"

  - `EMDListResponse.EMDID.EMDSegment.DateOfService` (string)
    The date of service the service is available for

  - `EMDListResponse.EMDID.EMDSegment.PresentTo` (string)
    The airline the EMD should be presented to to supply the service

  - `EMDListResponse.EMDID.EMDSegment.PresentAt` (string)
    The location the EMD should be presented to to supply the service

  - `EMDListResponse.EMDID.EMDSegment.Routing` (string)
    The routing the service is valid on

  - `EMDListResponse.EMDID.TotalAmount` (object)
    Total Amount object

  - `EMDListResponse.EMDID.TotalAmount.@type` (string)

  - `EMDListResponse.EMDID.TotalAmount.Base` (number)
    The price prior to all applicable taxes of a product such as the rate for a room or fare for a flight.
    Example: 120.2

  - `EMDListResponse.EMDID.TotalAmount.Total` (number)
    Specifies the total price including base + taxes + fees
    Example: 30.13

  - `EMDListResponse.EMDID.TotalAmount.approximateInd` (boolean)
    True if this amount has been converted from the original amount
    Example: true

  - `EMDListResponse.EMDID.FormOfPayment` (object, required)

  - `EMDListResponse.EMDID.FormOfPayment.value` (string)
    The list of valid forms of payment.
    Enum: "AgencyAccount", "BSP", "Cash", "Document", "Invoice", "PaymentCard", "WaiverCode"

  - `EMDListResponse.EMDID.FormOfPayment.documentNumber` (string)
    Payment document number
    Example: 45

  - `EMDListResponse.EMDID.FormOfPayment.encryptedValue` (string)
    Encrypted value
    Example: BNASJASJKASKJASHJKASK

  - `EMDListResponse.EMDID.FormOfPayment.documentIssuer` (string)
    Document issuer
    Example: Alpha travel

  - `EMDListResponse.EMDID.FormOfPayment.documentType` (string)
    Document type like EMD, MCO
    Enum: "EMD", "MCO", "Ticket", "TASF", "Invoice"

  - `EMDListResponse.EMDID.ESAC` (string)
    The BSP ESAC code assign for a void or refund transaction\nThe BSP E

  - `EMDListResponse.EMDID.AssociatedTicketNumber` (object)
    The ticketNumber that will be used as partial payment for this Offer/Offering

  - `EMDListResponse.EMDID.AssociatedTicketNumber.value` (string)
    Ticket number
    Example: 1156

  - `EMDListResponse.EMDID.AssociatedTicketNumber.ticketIssuer` (string)
    Ticket issuer
    Example: Cargo airways

  - `EMDListResponse.EMDID.AssociatedTicketNumber.contentSource` (string)
    Indicates the owner the offer or document.
    Enum: "GDS", "NDC", "LCC", "API"

  - `EMDListResponse.EMDID.Restrictions` (array)

  - `EMDListResponse.@type` (string)
    Example: response

  - `EMDListResponse.transactionId` (string)
    A unique system-generated (128 bit GUID format) transaction/tracking id for a single request and response (i.e. for a single transaction) used for internal tracking and troubleshooting.  
Also known as E2ETrackingId.  
Not returned in all Hotel API responses.
    Example: 49f58f5f-c443-43b4-9f5d-be405fd00a01

  - `EMDListResponse.traceId` (string)
    Used in hospitality workflows to provide a unique transaction or tracking id for a single request and response.  
For Air Eligibility, returned if a custom trace ID was sent in the request header.  
For Hotel Rules, returned if a custom trace ID was sent in the request header.
    Example: TraceID_123456

  - `EMDListResponse.correlationId` (string)
    Identifier used to correlate hotel API invocations across a multi-call business flows.

  - `EMDListResponse.reservationStatus` (string)
    Status of reservation or offer completion.
    Enum: "Success", "Fail", "Partial", "Pending", "OnHold", "Retry", "Other"

  - `EMDListResponse.Result` (object)
    Returns the error and/or warning message information, if applicable.

  - `EMDListResponse.Result.@type` (string)
    Discriminator class Result only
    Example: Result

  - `EMDListResponse.Result.status` (string)
    The status of an error or warning
    Enum: "Not processed", "Incomplete", "Complete", "Unknown"

  - `EMDListResponse.Result.Error` (array)
    A list of error information returned at the provider level for a response.

  - `EMDListResponse.Result.Error.@type` (string, required)
    Discriminator classes Error or ErrorDetail
    Example: ErrorDetail

  - `EMDListResponse.Result.Error.StatusCode` (integer)
    Http standard response code
    Example: 200

  - `EMDListResponse.Result.Error.Message` (string)
    The Travelport standardized error or warning message
    Example: No flights found.

  - `EMDListResponse.Result.Error.NameValuePair` (array)

  - `EMDListResponse.Result.Error.NameValuePair.value` (string)
    Text directly related to name description, providing more detail. May have character restrictions based on remark type (e.g. Free Text limitations: 84 characters, alphanumeric and some special characters).
    Example: Sunday

  - `EMDListResponse.Result.Error.NameValuePair.id` (string)
    Optional internally referenced id
    Example: 6

  - `EMDListResponse.Result.Error.NameValuePair.name` (string, required)
    Key, categorizing the type of remark or error.
    Example: Day1

  - `EMDListResponse.Result.Warning` (array)
    A list of warning information returned at the provider level for a response.

  - `EMDListResponse.Result.Warning.@type` (string, required)
    Discriminator classes Warning or WarningDetail
    Example: WarningDetail

  - `EMDListResponse.Result.Warning.StatusCode` (integer)
    Http standard response code
    Example: 200

  - `EMDListResponse.Result.Warning.Message` (string)
    The Travelport standardized error or warning message
    Example: Customer Loyalty could not be applied.

  - `EMDListResponse.Result.Warning.NameValuePair` (array)

  - `EMDListResponse.NextSteps` (object)
    Container for the steps that describe actions that may be taken on the containing object.  
Not applicable for an Eligibility or Exchange response.

  - `EMDListResponse.NextSteps.baseURI` (string, required)
    The base portion of the URI in order to shorten the uris in the individual steps

  - `EMDListResponse.NextSteps.id` (string)
    Optional internally referenced id
    Example: 5

  - `EMDListResponse.NextSteps.NextStep` (array, required)

  - `EMDListResponse.NextSteps.NextStep.value` (string)
    Example: www.resourcelocation.com

  - `EMDListResponse.NextSteps.NextStep.id` (string)
    Identifier for the Next Step
    Example: 2

  - `EMDListResponse.NextSteps.NextStep.action` (string, required)
    The action this next step is intended to achieve
    Example: cancel

  - `EMDListResponse.NextSteps.NextStep.method` (string, required)
    Describes the set of potential methods that can be taken after an operation.
    Enum: "GET", "DELETE", "PUT", "POST"

  - `EMDListResponse.NextSteps.NextStep.description` (string)
    Additional clarification for the next step
    Example: remove offer from the order

  - `EMDListResponse.ReferenceList` (array)

  - `EMDListResponse.ReferenceList.@type` (string, required)
    Discriminator
- Air Search child classes are ReferenceListAmenity, ReferenceListBrand, ReferenceListFlight, ReferenceListProduct, ReferenceListTermsAndConditions, and ReferenceListUniversalProductAttribute.
- Air Price child classes are ReferenceListAmenity and ReferenceListBrand.
- FareRules child class is ReferenceListFlight.
- Search Ancillaries child class is ReferenceListFlight.
- Seat Map child class is ReferenceListSeatingChart.
- Hotel Availability child class is ReferenceListPropertyDates.
- Reservation and Reservation Workbench child classes are ReferenceListAmenity, ReferenceListBrand, and ReferenceListUniversalProductAttribute.
- Exchange Search child classes are ReferenceListBrand, ReferenceListFlight, and ReferenceListExchangedPrice.
- Reservation Receipt child classes are ReferenceListOffer and ReferenceListTraveler.
- Book_Traveler child class is ReferenceListTraveler.
    Example: ReferenceListFlight

  - `EMDListResponse.ReferenceList.id` (string)
    Uniquely identifies for the Reference List

  - `EMDListResponse.CurrencyRateConversion` (array)

  - `EMDListResponse.CurrencyRateConversion.@type` (string)

  - `EMDListResponse.CurrencyRateConversion.ConversionRate` (object, required)
    Conversion rate of SourceCurrency value to TargetCurrency value. This value can be used to calculate, independently of the API, conversion for the rates in the response. The response does not convert any amounts.

  - `EMDListResponse.CurrencyRateConversion.ConversionRate.value` (number)

  - `EMDListResponse.CurrencyRateConversion.ConversionRate.rateAuthority` (string)
    Contextual rate authority
    Example: ISO 4217

  - `EMDListResponse.CurrencyRateConversion.ConversionRate.rateAsOf` (string)
    Rate as of
    Example: 2026-08-07T12:12:00Z

  - `EMDListResponse.Pagination` (object)
    Pagination object used when result sets span across a number of pages.

  - `EMDListResponse.Pagination.@type` (string, required)
    Example: Pagination

  - `EMDListResponse.Pagination.page` (integer, required)
    The current page number of the full result set
    Example: 1

  - `EMDListResponse.Pagination.pageSize` (integer, required)
    The total number of items on this page
    Example: 20

  - `EMDListResponse.Pagination.totalPages` (integer, required)
    The total number of pages in this result set
    Example: 5

  - `EMDListResponse.Pagination.totalItems` (integer, required)
    The total number of pages in this result set
    Example: 100

## Response 400 fields (application/json):

  - `ErrorResponse` (object)
    Base common error response

  - `ErrorResponse.@type` (string)
    Example: response

  - `ErrorResponse.transactionId` (string)
    A unique system-generated (128 bit GUID format) transaction/tracking id for a single request and response (i.e. for a single transaction) used for internal tracking and troubleshooting.  
Also known as E2ETrackingId.  
Not returned in all Hotel API responses.
    Example: 49f58f5f-c443-43b4-9f5d-be405fd00a01

  - `ErrorResponse.traceId` (string)
    Used in hospitality workflows to provide a unique transaction or tracking id for a single request and response.  
For Air Eligibility, returned if a custom trace ID was sent in the request header.  
For Hotel Rules, returned if a custom trace ID was sent in the request header.
    Example: TraceID_123456

  - `ErrorResponse.correlationId` (string)
    Identifier used to correlate hotel API invocations across a multi-call business flows.

  - `ErrorResponse.reservationStatus` (string)
    Status of reservation or offer completion.
    Enum: "Success", "Fail", "Partial", "Pending", "OnHold", "Retry", "Other"

  - `ErrorResponse.Result` (object)
    Returns the error and/or warning message information, if applicable.

  - `ErrorResponse.Result.@type` (string)
    Discriminator class Result only
    Example: Result

  - `ErrorResponse.Result.status` (string)
    The status of an error or warning
    Enum: "Not processed", "Incomplete", "Complete", "Unknown"

  - `ErrorResponse.Result.Error` (array)
    A list of error information returned at the provider level for a response.

  - `ErrorResponse.Result.Error.@type` (string, required)
    Discriminator classes Error or ErrorDetail
    Example: ErrorDetail

  - `ErrorResponse.Result.Error.StatusCode` (integer)
    Http standard response code
    Example: 200

  - `ErrorResponse.Result.Error.Message` (string)
    The Travelport standardized error or warning message
    Example: No flights found.

  - `ErrorResponse.Result.Error.NameValuePair` (array)

  - `ErrorResponse.Result.Error.NameValuePair.value` (string)
    Text directly related to name description, providing more detail. May have character restrictions based on remark type (e.g. Free Text limitations: 84 characters, alphanumeric and some special characters).
    Example: Sunday

  - `ErrorResponse.Result.Error.NameValuePair.id` (string)
    Optional internally referenced id
    Example: 6

  - `ErrorResponse.Result.Error.NameValuePair.name` (string, required)
    Key, categorizing the type of remark or error.
    Example: Day1

  - `ErrorResponse.Result.Warning` (array)
    A list of warning information returned at the provider level for a response.

  - `ErrorResponse.Result.Warning.@type` (string, required)
    Discriminator classes Warning or WarningDetail
    Example: WarningDetail

  - `ErrorResponse.Result.Warning.StatusCode` (integer)
    Http standard response code
    Example: 200

  - `ErrorResponse.Result.Warning.Message` (string)
    The Travelport standardized error or warning message
    Example: Customer Loyalty could not be applied.

  - `ErrorResponse.Result.Warning.NameValuePair` (array)

  - `ErrorResponse.Identifier` (object)
    A globally unique identifier key often used to reference a given option (such as Pricing, Booking, Rules, or additional workflows) or to retrieve information (such as Hotel pagination).

  - `ErrorResponse.Identifier.value` (string)
    Unique offer identifier that can be sent in subsequent payload requests to reference this offer.
When used for reference flight calls, the CatalogProductOfferingsIdentifier will be the transaction identifier from the Search, Next Leg Search, or Flight Specific Search response in CatalogProductOfferings/Identifier/value.
If you choose to pull the CatalogProductOfferingsIdentifier from the Price response instead (OfferListResponse/Identifier/value), either full or reference payload, please note for subsequent Add Offer requests you must remove the _PC appended to the end of the value in the AirPrice response (e.g., change value: '93d2091d-3d04-48ab-8091-6ae1525f02ea_PC' to value: '93d2091d-3d04-48ab-8091-6ae1525f02ea').
When building an AirPrice or Add Offer reference payload request:
- Look for the CatalogProductOfferingIdentifier (ex: o1) in a Search response at CatalogProductOfferings/CatalogProductOffering/id or a Price response at OfferListResponse/OfferID/id.
- Look for the ProductIdentifier (ex: p0) in a Search response at CatalogProductOfferings/CatalogProductOffering/ProductBrandOptions/ProductBrandOffering/Product/productRef or from a Price response at OfferListResponse/OfferID/Product/id.

When returned from a Workbench, this value is the workbench identifier that must be sent in all subsequent requests for this workbench session.
When returned from Air Exchange Eligibility, value is the ticket number sent with the eligibility request.
When used specifically for form of payment, the value will begin with the characters 'FOP'. Similarly, the OfferIdentifier associated will begin with the character 'O'.
For Hotel Create Reservation (Reference Payload), send the value from the Availability response in CatalogOffering/id or the value from SearchComplete returned in propertyItems/lowestPublicAvailableRate/rateKey/value.
Results from Hotel Availability and Hotel SearchComplete are stored in the cache for 30 minutes. If the offers expire before booking, you must send a new request.
    Example: A0656EFF-FAF4-456F-B061-0161008D7C4E

  - `ErrorResponse.Identifier.authority` (string)
    Name of the supplier system that created this identifier - the source of information.  
For AirPrice, please note that GDS offers return the value 'Travelport' in authority while NDC offers return the carrier code of the issuing NDC carrier.  
When returned from Air Exchange Eligibility, authority is always 'Travelport' as the transaction issuer.  
For Hotels, authority indicates which supplier returned the lowest available rate for that property: either 'TVPT' (Travelport) or 'BKNG' (booking.com). Booking.com access requires additional provisioning and a direct agreement with the supplier. Authority is not returned if the property is closed or returns an error.  
For Hotel Create Reservation (Full Payload) and Sync Reservation send the value from the Availability response in CatalogOffering/Identifier/authority for the instance you want to book.
    Example: TVPT

  - `ErrorResponse.NextSteps` (object)
    Container for the steps that describe actions that may be taken on the containing object.  
Not applicable for an Eligibility or Exchange response.

  - `ErrorResponse.NextSteps.baseURI` (string, required)
    The base portion of the URI in order to shorten the uris in the individual steps

  - `ErrorResponse.NextSteps.id` (string)
    Optional internally referenced id
    Example: 5

  - `ErrorResponse.NextSteps.NextStep` (array, required)

  - `ErrorResponse.NextSteps.NextStep.value` (string)
    Example: www.resourcelocation.com

  - `ErrorResponse.NextSteps.NextStep.id` (string)
    Identifier for the Next Step
    Example: 2

  - `ErrorResponse.NextSteps.NextStep.action` (string, required)
    The action this next step is intended to achieve
    Example: cancel

  - `ErrorResponse.NextSteps.NextStep.method` (string, required)
    Describes the set of potential methods that can be taken after an operation.
    Enum: "GET", "DELETE", "PUT", "POST"

  - `ErrorResponse.NextSteps.NextStep.description` (string)
    Additional clarification for the next step
    Example: remove offer from the order

  - `ErrorResponse.ReferenceList` (array)

  - `ErrorResponse.ReferenceList.@type` (string, required)
    Discriminator
- Air Search child classes are ReferenceListAmenity, ReferenceListBrand, ReferenceListFlight, ReferenceListProduct, ReferenceListTermsAndConditions, and ReferenceListUniversalProductAttribute.
- Air Price child classes are ReferenceListAmenity and ReferenceListBrand.
- FareRules child class is ReferenceListFlight.
- Search Ancillaries child class is ReferenceListFlight.
- Seat Map child class is ReferenceListSeatingChart.
- Hotel Availability child class is ReferenceListPropertyDates.
- Reservation and Reservation Workbench child classes are ReferenceListAmenity, ReferenceListBrand, and ReferenceListUniversalProductAttribute.
- Exchange Search child classes are ReferenceListBrand, ReferenceListFlight, and ReferenceListExchangedPrice.
- Reservation Receipt child classes are ReferenceListOffer and ReferenceListTraveler.
- Book_Traveler child class is ReferenceListTraveler.
    Example: ReferenceListFlight

  - `ErrorResponse.ReferenceList.id` (string)
    Uniquely identifies for the Reference List

  - `ErrorResponse.CurrencyRateConversion` (array)

  - `ErrorResponse.CurrencyRateConversion.@type` (string)

  - `ErrorResponse.CurrencyRateConversion.SourceCurrency` (object, required)
    Currency codes are the three-letter alphabetic codes that represent the various currencies used throughout the world.  
Unless changed in the request, the currency is the default associated with your provisioned PCC from Travelport.  
For Hotel: SourceCurrency is based on the location of the hotel and used for all rates in the response. TargetCurrency is the currency code sent in the request in requestedCurrency.

  - `ErrorResponse.CurrencyRateConversion.SourceCurrency.value` (string)
    An ISO 4217 currency code.
    Example: USD

  - `ErrorResponse.CurrencyRateConversion.SourceCurrency.codeAuthority` (string)
    Currency code authority
    Example: ISO 4217

  - `ErrorResponse.CurrencyRateConversion.SourceCurrency.decimalPlace` (integer)
    Number of decimal places for the currency.
    Example: 4

  - `ErrorResponse.CurrencyRateConversion.SourceCurrency.decimalAuthority` (string)
    Currency code decimal authority
    Example: ISO 4217

  - `ErrorResponse.CurrencyRateConversion.ConversionRate` (object, required)
    Conversion rate of SourceCurrency value to TargetCurrency value. This value can be used to calculate, independently of the API, conversion for the rates in the response. The response does not convert any amounts.

  - `ErrorResponse.CurrencyRateConversion.ConversionRate.value` (number)

  - `ErrorResponse.CurrencyRateConversion.ConversionRate.rateAuthority` (string)
    Contextual rate authority
    Example: ISO 4217

  - `ErrorResponse.CurrencyRateConversion.ConversionRate.rateAsOf` (string)
    Rate as of
    Example: 2026-08-07T12:12:00Z

  - `ErrorResponse.Pagination` (object)
    Pagination object used when result sets span across a number of pages.

  - `ErrorResponse.Pagination.@type` (string, required)
    Example: Pagination

  - `ErrorResponse.Pagination.page` (integer, required)
    The current page number of the full result set
    Example: 1

  - `ErrorResponse.Pagination.pageSize` (integer, required)
    The total number of items on this page
    Example: 20

  - `ErrorResponse.Pagination.totalPages` (integer, required)
    The total number of pages in this result set
    Example: 5

  - `ErrorResponse.Pagination.totalItems` (integer, required)
    The total number of pages in this result set
    Example: 100

## Response 401 fields (application/json):

  - `ErrorResponse` (object)
    Base common error response

  - `ErrorResponse.@type` (string)
    Example: response

  - `ErrorResponse.transactionId` (string)
    A unique system-generated (128 bit GUID format) transaction/tracking id for a single request and response (i.e. for a single transaction) used for internal tracking and troubleshooting.  
Also known as E2ETrackingId.  
Not returned in all Hotel API responses.
    Example: 49f58f5f-c443-43b4-9f5d-be405fd00a01

  - `ErrorResponse.traceId` (string)
    Used in hospitality workflows to provide a unique transaction or tracking id for a single request and response.  
For Air Eligibility, returned if a custom trace ID was sent in the request header.  
For Hotel Rules, returned if a custom trace ID was sent in the request header.
    Example: TraceID_123456

  - `ErrorResponse.correlationId` (string)
    Identifier used to correlate hotel API invocations across a multi-call business flows.

  - `ErrorResponse.reservationStatus` (string)
    Status of reservation or offer completion.
    Enum: "Success", "Fail", "Partial", "Pending", "OnHold", "Retry", "Other"

  - `ErrorResponse.Result` (object)
    Returns the error and/or warning message information, if applicable.

  - `ErrorResponse.Result.@type` (string)
    Discriminator class Result only
    Example: Result

  - `ErrorResponse.Result.status` (string)
    The status of an error or warning
    Enum: "Not processed", "Incomplete", "Complete", "Unknown"

  - `ErrorResponse.Result.Error` (array)
    A list of error information returned at the provider level for a response.

  - `ErrorResponse.Result.Error.@type` (string, required)
    Discriminator classes Error or ErrorDetail
    Example: ErrorDetail

  - `ErrorResponse.Result.Error.StatusCode` (integer)
    Http standard response code
    Example: 200

  - `ErrorResponse.Result.Error.Message` (string)
    The Travelport standardized error or warning message
    Example: No flights found.

  - `ErrorResponse.Result.Error.NameValuePair` (array)

  - `ErrorResponse.Result.Error.NameValuePair.value` (string)
    Text directly related to name description, providing more detail. May have character restrictions based on remark type (e.g. Free Text limitations: 84 characters, alphanumeric and some special characters).
    Example: Sunday

  - `ErrorResponse.Result.Error.NameValuePair.id` (string)
    Optional internally referenced id
    Example: 6

  - `ErrorResponse.Result.Error.NameValuePair.name` (string, required)
    Key, categorizing the type of remark or error.
    Example: Day1

  - `ErrorResponse.Result.Warning` (array)
    A list of warning information returned at the provider level for a response.

  - `ErrorResponse.Result.Warning.@type` (string, required)
    Discriminator classes Warning or WarningDetail
    Example: WarningDetail

  - `ErrorResponse.Result.Warning.StatusCode` (integer)
    Http standard response code
    Example: 200

  - `ErrorResponse.Result.Warning.Message` (string)
    The Travelport standardized error or warning message
    Example: Customer Loyalty could not be applied.

  - `ErrorResponse.Result.Warning.NameValuePair` (array)

  - `ErrorResponse.Identifier` (object)
    A globally unique identifier key often used to reference a given option (such as Pricing, Booking, Rules, or additional workflows) or to retrieve information (such as Hotel pagination).

  - `ErrorResponse.Identifier.value` (string)
    Unique offer identifier that can be sent in subsequent payload requests to reference this offer.
When used for reference flight calls, the CatalogProductOfferingsIdentifier will be the transaction identifier from the Search, Next Leg Search, or Flight Specific Search response in CatalogProductOfferings/Identifier/value.
If you choose to pull the CatalogProductOfferingsIdentifier from the Price response instead (OfferListResponse/Identifier/value), either full or reference payload, please note for subsequent Add Offer requests you must remove the _PC appended to the end of the value in the AirPrice response (e.g., change value: '93d2091d-3d04-48ab-8091-6ae1525f02ea_PC' to value: '93d2091d-3d04-48ab-8091-6ae1525f02ea').
When building an AirPrice or Add Offer reference payload request:
- Look for the CatalogProductOfferingIdentifier (ex: o1) in a Search response at CatalogProductOfferings/CatalogProductOffering/id or a Price response at OfferListResponse/OfferID/id.
- Look for the ProductIdentifier (ex: p0) in a Search response at CatalogProductOfferings/CatalogProductOffering/ProductBrandOptions/ProductBrandOffering/Product/productRef or from a Price response at OfferListResponse/OfferID/Product/id.

When returned from a Workbench, this value is the workbench identifier that must be sent in all subsequent requests for this workbench session.
When returned from Air Exchange Eligibility, value is the ticket number sent with the eligibility request.
When used specifically for form of payment, the value will begin with the characters 'FOP'. Similarly, the OfferIdentifier associated will begin with the character 'O'.
For Hotel Create Reservation (Reference Payload), send the value from the Availability response in CatalogOffering/id or the value from SearchComplete returned in propertyItems/lowestPublicAvailableRate/rateKey/value.
Results from Hotel Availability and Hotel SearchComplete are stored in the cache for 30 minutes. If the offers expire before booking, you must send a new request.
    Example: A0656EFF-FAF4-456F-B061-0161008D7C4E

  - `ErrorResponse.Identifier.authority` (string)
    Name of the supplier system that created this identifier - the source of information.  
For AirPrice, please note that GDS offers return the value 'Travelport' in authority while NDC offers return the carrier code of the issuing NDC carrier.  
When returned from Air Exchange Eligibility, authority is always 'Travelport' as the transaction issuer.  
For Hotels, authority indicates which supplier returned the lowest available rate for that property: either 'TVPT' (Travelport) or 'BKNG' (booking.com). Booking.com access requires additional provisioning and a direct agreement with the supplier. Authority is not returned if the property is closed or returns an error.  
For Hotel Create Reservation (Full Payload) and Sync Reservation send the value from the Availability response in CatalogOffering/Identifier/authority for the instance you want to book.
    Example: TVPT

  - `ErrorResponse.NextSteps` (object)
    Container for the steps that describe actions that may be taken on the containing object.  
Not applicable for an Eligibility or Exchange response.

  - `ErrorResponse.NextSteps.baseURI` (string, required)
    The base portion of the URI in order to shorten the uris in the individual steps

  - `ErrorResponse.NextSteps.id` (string)
    Optional internally referenced id
    Example: 5

  - `ErrorResponse.NextSteps.NextStep` (array, required)

  - `ErrorResponse.NextSteps.NextStep.value` (string)
    Example: www.resourcelocation.com

  - `ErrorResponse.NextSteps.NextStep.id` (string)
    Identifier for the Next Step
    Example: 2

  - `ErrorResponse.NextSteps.NextStep.action` (string, required)
    The action this next step is intended to achieve
    Example: cancel

  - `ErrorResponse.NextSteps.NextStep.method` (string, required)
    Describes the set of potential methods that can be taken after an operation.
    Enum: "GET", "DELETE", "PUT", "POST"

  - `ErrorResponse.NextSteps.NextStep.description` (string)
    Additional clarification for the next step
    Example: remove offer from the order

  - `ErrorResponse.ReferenceList` (array)

  - `ErrorResponse.ReferenceList.@type` (string, required)
    Discriminator
- Air Search child classes are ReferenceListAmenity, ReferenceListBrand, ReferenceListFlight, ReferenceListProduct, ReferenceListTermsAndConditions, and ReferenceListUniversalProductAttribute.
- Air Price child classes are ReferenceListAmenity and ReferenceListBrand.
- FareRules child class is ReferenceListFlight.
- Search Ancillaries child class is ReferenceListFlight.
- Seat Map child class is ReferenceListSeatingChart.
- Hotel Availability child class is ReferenceListPropertyDates.
- Reservation and Reservation Workbench child classes are ReferenceListAmenity, ReferenceListBrand, and ReferenceListUniversalProductAttribute.
- Exchange Search child classes are ReferenceListBrand, ReferenceListFlight, and ReferenceListExchangedPrice.
- Reservation Receipt child classes are ReferenceListOffer and ReferenceListTraveler.
- Book_Traveler child class is ReferenceListTraveler.
    Example: ReferenceListFlight

  - `ErrorResponse.ReferenceList.id` (string)
    Uniquely identifies for the Reference List

  - `ErrorResponse.CurrencyRateConversion` (array)

  - `ErrorResponse.CurrencyRateConversion.@type` (string)

  - `ErrorResponse.CurrencyRateConversion.SourceCurrency` (object, required)
    Currency codes are the three-letter alphabetic codes that represent the various currencies used throughout the world.  
Unless changed in the request, the currency is the default associated with your provisioned PCC from Travelport.  
For Hotel: SourceCurrency is based on the location of the hotel and used for all rates in the response. TargetCurrency is the currency code sent in the request in requestedCurrency.

  - `ErrorResponse.CurrencyRateConversion.SourceCurrency.value` (string)
    An ISO 4217 currency code.
    Example: USD

  - `ErrorResponse.CurrencyRateConversion.SourceCurrency.codeAuthority` (string)
    Currency code authority
    Example: ISO 4217

  - `ErrorResponse.CurrencyRateConversion.SourceCurrency.decimalPlace` (integer)
    Number of decimal places for the currency.
    Example: 4

  - `ErrorResponse.CurrencyRateConversion.SourceCurrency.decimalAuthority` (string)
    Currency code decimal authority
    Example: ISO 4217

  - `ErrorResponse.CurrencyRateConversion.ConversionRate` (object, required)
    Conversion rate of SourceCurrency value to TargetCurrency value. This value can be used to calculate, independently of the API, conversion for the rates in the response. The response does not convert any amounts.

  - `ErrorResponse.CurrencyRateConversion.ConversionRate.value` (number)

  - `ErrorResponse.CurrencyRateConversion.ConversionRate.rateAuthority` (string)
    Contextual rate authority
    Example: ISO 4217

  - `ErrorResponse.CurrencyRateConversion.ConversionRate.rateAsOf` (string)
    Rate as of
    Example: 2026-08-07T12:12:00Z

  - `ErrorResponse.Pagination` (object)
    Pagination object used when result sets span across a number of pages.

  - `ErrorResponse.Pagination.@type` (string, required)
    Example: Pagination

  - `ErrorResponse.Pagination.page` (integer, required)
    The current page number of the full result set
    Example: 1

  - `ErrorResponse.Pagination.pageSize` (integer, required)
    The total number of items on this page
    Example: 20

  - `ErrorResponse.Pagination.totalPages` (integer, required)
    The total number of pages in this result set
    Example: 5

  - `ErrorResponse.Pagination.totalItems` (integer, required)
    The total number of pages in this result set
    Example: 100

## Response 402 fields (application/json):

  - `ErrorResponse` (object)
    Base common error response

  - `ErrorResponse.@type` (string)
    Example: response

  - `ErrorResponse.transactionId` (string)
    A unique system-generated (128 bit GUID format) transaction/tracking id for a single request and response (i.e. for a single transaction) used for internal tracking and troubleshooting.  
Also known as E2ETrackingId.  
Not returned in all Hotel API responses.
    Example: 49f58f5f-c443-43b4-9f5d-be405fd00a01

  - `ErrorResponse.traceId` (string)
    Used in hospitality workflows to provide a unique transaction or tracking id for a single request and response.  
For Air Eligibility, returned if a custom trace ID was sent in the request header.  
For Hotel Rules, returned if a custom trace ID was sent in the request header.
    Example: TraceID_123456

  - `ErrorResponse.correlationId` (string)
    Identifier used to correlate hotel API invocations across a multi-call business flows.

  - `ErrorResponse.reservationStatus` (string)
    Status of reservation or offer completion.
    Enum: "Success", "Fail", "Partial", "Pending", "OnHold", "Retry", "Other"

  - `ErrorResponse.Result` (object)
    Returns the error and/or warning message information, if applicable.

  - `ErrorResponse.Result.@type` (string)
    Discriminator class Result only
    Example: Result

  - `ErrorResponse.Result.status` (string)
    The status of an error or warning
    Enum: "Not processed", "Incomplete", "Complete", "Unknown"

  - `ErrorResponse.Result.Error` (array)
    A list of error information returned at the provider level for a response.

  - `ErrorResponse.Result.Error.@type` (string, required)
    Discriminator classes Error or ErrorDetail
    Example: ErrorDetail

  - `ErrorResponse.Result.Error.StatusCode` (integer)
    Http standard response code
    Example: 200

  - `ErrorResponse.Result.Error.Message` (string)
    The Travelport standardized error or warning message
    Example: No flights found.

  - `ErrorResponse.Result.Error.NameValuePair` (array)

  - `ErrorResponse.Result.Error.NameValuePair.value` (string)
    Text directly related to name description, providing more detail. May have character restrictions based on remark type (e.g. Free Text limitations: 84 characters, alphanumeric and some special characters).
    Example: Sunday

  - `ErrorResponse.Result.Error.NameValuePair.id` (string)
    Optional internally referenced id
    Example: 6

  - `ErrorResponse.Result.Error.NameValuePair.name` (string, required)
    Key, categorizing the type of remark or error.
    Example: Day1

  - `ErrorResponse.Result.Warning` (array)
    A list of warning information returned at the provider level for a response.

  - `ErrorResponse.Result.Warning.@type` (string, required)
    Discriminator classes Warning or WarningDetail
    Example: WarningDetail

  - `ErrorResponse.Result.Warning.StatusCode` (integer)
    Http standard response code
    Example: 200

  - `ErrorResponse.Result.Warning.Message` (string)
    The Travelport standardized error or warning message
    Example: Customer Loyalty could not be applied.

  - `ErrorResponse.Result.Warning.NameValuePair` (array)

  - `ErrorResponse.Identifier` (object)
    A globally unique identifier key often used to reference a given option (such as Pricing, Booking, Rules, or additional workflows) or to retrieve information (such as Hotel pagination).

  - `ErrorResponse.Identifier.value` (string)
    Unique offer identifier that can be sent in subsequent payload requests to reference this offer.
When used for reference flight calls, the CatalogProductOfferingsIdentifier will be the transaction identifier from the Search, Next Leg Search, or Flight Specific Search response in CatalogProductOfferings/Identifier/value.
If you choose to pull the CatalogProductOfferingsIdentifier from the Price response instead (OfferListResponse/Identifier/value), either full or reference payload, please note for subsequent Add Offer requests you must remove the _PC appended to the end of the value in the AirPrice response (e.g., change value: '93d2091d-3d04-48ab-8091-6ae1525f02ea_PC' to value: '93d2091d-3d04-48ab-8091-6ae1525f02ea').
When building an AirPrice or Add Offer reference payload request:
- Look for the CatalogProductOfferingIdentifier (ex: o1) in a Search response at CatalogProductOfferings/CatalogProductOffering/id or a Price response at OfferListResponse/OfferID/id.
- Look for the ProductIdentifier (ex: p0) in a Search response at CatalogProductOfferings/CatalogProductOffering/ProductBrandOptions/ProductBrandOffering/Product/productRef or from a Price response at OfferListResponse/OfferID/Product/id.

When returned from a Workbench, this value is the workbench identifier that must be sent in all subsequent requests for this workbench session.
When returned from Air Exchange Eligibility, value is the ticket number sent with the eligibility request.
When used specifically for form of payment, the value will begin with the characters 'FOP'. Similarly, the OfferIdentifier associated will begin with the character 'O'.
For Hotel Create Reservation (Reference Payload), send the value from the Availability response in CatalogOffering/id or the value from SearchComplete returned in propertyItems/lowestPublicAvailableRate/rateKey/value.
Results from Hotel Availability and Hotel SearchComplete are stored in the cache for 30 minutes. If the offers expire before booking, you must send a new request.
    Example: A0656EFF-FAF4-456F-B061-0161008D7C4E

  - `ErrorResponse.Identifier.authority` (string)
    Name of the supplier system that created this identifier - the source of information.  
For AirPrice, please note that GDS offers return the value 'Travelport' in authority while NDC offers return the carrier code of the issuing NDC carrier.  
When returned from Air Exchange Eligibility, authority is always 'Travelport' as the transaction issuer.  
For Hotels, authority indicates which supplier returned the lowest available rate for that property: either 'TVPT' (Travelport) or 'BKNG' (booking.com). Booking.com access requires additional provisioning and a direct agreement with the supplier. Authority is not returned if the property is closed or returns an error.  
For Hotel Create Reservation (Full Payload) and Sync Reservation send the value from the Availability response in CatalogOffering/Identifier/authority for the instance you want to book.
    Example: TVPT

  - `ErrorResponse.NextSteps` (object)
    Container for the steps that describe actions that may be taken on the containing object.  
Not applicable for an Eligibility or Exchange response.

  - `ErrorResponse.NextSteps.baseURI` (string, required)
    The base portion of the URI in order to shorten the uris in the individual steps

  - `ErrorResponse.NextSteps.id` (string)
    Optional internally referenced id
    Example: 5

  - `ErrorResponse.NextSteps.NextStep` (array, required)

  - `ErrorResponse.NextSteps.NextStep.value` (string)
    Example: www.resourcelocation.com

  - `ErrorResponse.NextSteps.NextStep.id` (string)
    Identifier for the Next Step
    Example: 2

  - `ErrorResponse.NextSteps.NextStep.action` (string, required)
    The action this next step is intended to achieve
    Example: cancel

  - `ErrorResponse.NextSteps.NextStep.method` (string, required)
    Describes the set of potential methods that can be taken after an operation.
    Enum: "GET", "DELETE", "PUT", "POST"

  - `ErrorResponse.NextSteps.NextStep.description` (string)
    Additional clarification for the next step
    Example: remove offer from the order

  - `ErrorResponse.ReferenceList` (array)

  - `ErrorResponse.ReferenceList.@type` (string, required)
    Discriminator
- Air Search child classes are ReferenceListAmenity, ReferenceListBrand, ReferenceListFlight, ReferenceListProduct, ReferenceListTermsAndConditions, and ReferenceListUniversalProductAttribute.
- Air Price child classes are ReferenceListAmenity and ReferenceListBrand.
- FareRules child class is ReferenceListFlight.
- Search Ancillaries child class is ReferenceListFlight.
- Seat Map child class is ReferenceListSeatingChart.
- Hotel Availability child class is ReferenceListPropertyDates.
- Reservation and Reservation Workbench child classes are ReferenceListAmenity, ReferenceListBrand, and ReferenceListUniversalProductAttribute.
- Exchange Search child classes are ReferenceListBrand, ReferenceListFlight, and ReferenceListExchangedPrice.
- Reservation Receipt child classes are ReferenceListOffer and ReferenceListTraveler.
- Book_Traveler child class is ReferenceListTraveler.
    Example: ReferenceListFlight

  - `ErrorResponse.ReferenceList.id` (string)
    Uniquely identifies for the Reference List

  - `ErrorResponse.CurrencyRateConversion` (array)

  - `ErrorResponse.CurrencyRateConversion.@type` (string)

  - `ErrorResponse.CurrencyRateConversion.SourceCurrency` (object, required)
    Currency codes are the three-letter alphabetic codes that represent the various currencies used throughout the world.  
Unless changed in the request, the currency is the default associated with your provisioned PCC from Travelport.  
For Hotel: SourceCurrency is based on the location of the hotel and used for all rates in the response. TargetCurrency is the currency code sent in the request in requestedCurrency.

  - `ErrorResponse.CurrencyRateConversion.SourceCurrency.value` (string)
    An ISO 4217 currency code.
    Example: USD

  - `ErrorResponse.CurrencyRateConversion.SourceCurrency.codeAuthority` (string)
    Currency code authority
    Example: ISO 4217

  - `ErrorResponse.CurrencyRateConversion.SourceCurrency.decimalPlace` (integer)
    Number of decimal places for the currency.
    Example: 4

  - `ErrorResponse.CurrencyRateConversion.SourceCurrency.decimalAuthority` (string)
    Currency code decimal authority
    Example: ISO 4217

  - `ErrorResponse.CurrencyRateConversion.ConversionRate` (object, required)
    Conversion rate of SourceCurrency value to TargetCurrency value. This value can be used to calculate, independently of the API, conversion for the rates in the response. The response does not convert any amounts.

  - `ErrorResponse.CurrencyRateConversion.ConversionRate.value` (number)

  - `ErrorResponse.CurrencyRateConversion.ConversionRate.rateAuthority` (string)
    Contextual rate authority
    Example: ISO 4217

  - `ErrorResponse.CurrencyRateConversion.ConversionRate.rateAsOf` (string)
    Rate as of
    Example: 2026-08-07T12:12:00Z

  - `ErrorResponse.Pagination` (object)
    Pagination object used when result sets span across a number of pages.

  - `ErrorResponse.Pagination.@type` (string, required)
    Example: Pagination

  - `ErrorResponse.Pagination.page` (integer, required)
    The current page number of the full result set
    Example: 1

  - `ErrorResponse.Pagination.pageSize` (integer, required)
    The total number of items on this page
    Example: 20

  - `ErrorResponse.Pagination.totalPages` (integer, required)
    The total number of pages in this result set
    Example: 5

  - `ErrorResponse.Pagination.totalItems` (integer, required)
    The total number of pages in this result set
    Example: 100

## Response 403 fields (application/json):

  - `ErrorResponse` (object)
    Base common error response

  - `ErrorResponse.@type` (string)
    Example: response

  - `ErrorResponse.transactionId` (string)
    A unique system-generated (128 bit GUID format) transaction/tracking id for a single request and response (i.e. for a single transaction) used for internal tracking and troubleshooting.  
Also known as E2ETrackingId.  
Not returned in all Hotel API responses.
    Example: 49f58f5f-c443-43b4-9f5d-be405fd00a01

  - `ErrorResponse.traceId` (string)
    Used in hospitality workflows to provide a unique transaction or tracking id for a single request and response.  
For Air Eligibility, returned if a custom trace ID was sent in the request header.  
For Hotel Rules, returned if a custom trace ID was sent in the request header.
    Example: TraceID_123456

  - `ErrorResponse.correlationId` (string)
    Identifier used to correlate hotel API invocations across a multi-call business flows.

  - `ErrorResponse.reservationStatus` (string)
    Status of reservation or offer completion.
    Enum: "Success", "Fail", "Partial", "Pending", "OnHold", "Retry", "Other"

  - `ErrorResponse.Result` (object)
    Returns the error and/or warning message information, if applicable.

  - `ErrorResponse.Result.@type` (string)
    Discriminator class Result only
    Example: Result

  - `ErrorResponse.Result.status` (string)
    The status of an error or warning
    Enum: "Not processed", "Incomplete", "Complete", "Unknown"

  - `ErrorResponse.Result.Error` (array)
    A list of error information returned at the provider level for a response.

  - `ErrorResponse.Result.Error.@type` (string, required)
    Discriminator classes Error or ErrorDetail
    Example: ErrorDetail

  - `ErrorResponse.Result.Error.StatusCode` (integer)
    Http standard response code
    Example: 200

  - `ErrorResponse.Result.Error.Message` (string)
    The Travelport standardized error or warning message
    Example: No flights found.

  - `ErrorResponse.Result.Error.NameValuePair` (array)

  - `ErrorResponse.Result.Error.NameValuePair.value` (string)
    Text directly related to name description, providing more detail. May have character restrictions based on remark type (e.g. Free Text limitations: 84 characters, alphanumeric and some special characters).
    Example: Sunday

  - `ErrorResponse.Result.Error.NameValuePair.id` (string)
    Optional internally referenced id
    Example: 6

  - `ErrorResponse.Result.Error.NameValuePair.name` (string, required)
    Key, categorizing the type of remark or error.
    Example: Day1

  - `ErrorResponse.Result.Warning` (array)
    A list of warning information returned at the provider level for a response.

  - `ErrorResponse.Result.Warning.@type` (string, required)
    Discriminator classes Warning or WarningDetail
    Example: WarningDetail

  - `ErrorResponse.Result.Warning.StatusCode` (integer)
    Http standard response code
    Example: 200

  - `ErrorResponse.Result.Warning.Message` (string)
    The Travelport standardized error or warning message
    Example: Customer Loyalty could not be applied.

  - `ErrorResponse.Result.Warning.NameValuePair` (array)

  - `ErrorResponse.Identifier` (object)
    A globally unique identifier key often used to reference a given option (such as Pricing, Booking, Rules, or additional workflows) or to retrieve information (such as Hotel pagination).

  - `ErrorResponse.Identifier.value` (string)
    Unique offer identifier that can be sent in subsequent payload requests to reference this offer.
When used for reference flight calls, the CatalogProductOfferingsIdentifier will be the transaction identifier from the Search, Next Leg Search, or Flight Specific Search response in CatalogProductOfferings/Identifier/value.
If you choose to pull the CatalogProductOfferingsIdentifier from the Price response instead (OfferListResponse/Identifier/value), either full or reference payload, please note for subsequent Add Offer requests you must remove the _PC appended to the end of the value in the AirPrice response (e.g., change value: '93d2091d-3d04-48ab-8091-6ae1525f02ea_PC' to value: '93d2091d-3d04-48ab-8091-6ae1525f02ea').
When building an AirPrice or Add Offer reference payload request:
- Look for the CatalogProductOfferingIdentifier (ex: o1) in a Search response at CatalogProductOfferings/CatalogProductOffering/id or a Price response at OfferListResponse/OfferID/id.
- Look for the ProductIdentifier (ex: p0) in a Search response at CatalogProductOfferings/CatalogProductOffering/ProductBrandOptions/ProductBrandOffering/Product/productRef or from a Price response at OfferListResponse/OfferID/Product/id.

When returned from a Workbench, this value is the workbench identifier that must be sent in all subsequent requests for this workbench session.
When returned from Air Exchange Eligibility, value is the ticket number sent with the eligibility request.
When used specifically for form of payment, the value will begin with the characters 'FOP'. Similarly, the OfferIdentifier associated will begin with the character 'O'.
For Hotel Create Reservation (Reference Payload), send the value from the Availability response in CatalogOffering/id or the value from SearchComplete returned in propertyItems/lowestPublicAvailableRate/rateKey/value.
Results from Hotel Availability and Hotel SearchComplete are stored in the cache for 30 minutes. If the offers expire before booking, you must send a new request.
    Example: A0656EFF-FAF4-456F-B061-0161008D7C4E

  - `ErrorResponse.Identifier.authority` (string)
    Name of the supplier system that created this identifier - the source of information.  
For AirPrice, please note that GDS offers return the value 'Travelport' in authority while NDC offers return the carrier code of the issuing NDC carrier.  
When returned from Air Exchange Eligibility, authority is always 'Travelport' as the transaction issuer.  
For Hotels, authority indicates which supplier returned the lowest available rate for that property: either 'TVPT' (Travelport) or 'BKNG' (booking.com). Booking.com access requires additional provisioning and a direct agreement with the supplier. Authority is not returned if the property is closed or returns an error.  
For Hotel Create Reservation (Full Payload) and Sync Reservation send the value from the Availability response in CatalogOffering/Identifier/authority for the instance you want to book.
    Example: TVPT

  - `ErrorResponse.NextSteps` (object)
    Container for the steps that describe actions that may be taken on the containing object.  
Not applicable for an Eligibility or Exchange response.

  - `ErrorResponse.NextSteps.baseURI` (string, required)
    The base portion of the URI in order to shorten the uris in the individual steps

  - `ErrorResponse.NextSteps.id` (string)
    Optional internally referenced id
    Example: 5

  - `ErrorResponse.NextSteps.NextStep` (array, required)

  - `ErrorResponse.NextSteps.NextStep.value` (string)
    Example: www.resourcelocation.com

  - `ErrorResponse.NextSteps.NextStep.id` (string)
    Identifier for the Next Step
    Example: 2

  - `ErrorResponse.NextSteps.NextStep.action` (string, required)
    The action this next step is intended to achieve
    Example: cancel

  - `ErrorResponse.NextSteps.NextStep.method` (string, required)
    Describes the set of potential methods that can be taken after an operation.
    Enum: "GET", "DELETE", "PUT", "POST"

  - `ErrorResponse.NextSteps.NextStep.description` (string)
    Additional clarification for the next step
    Example: remove offer from the order

  - `ErrorResponse.ReferenceList` (array)

  - `ErrorResponse.ReferenceList.@type` (string, required)
    Discriminator
- Air Search child classes are ReferenceListAmenity, ReferenceListBrand, ReferenceListFlight, ReferenceListProduct, ReferenceListTermsAndConditions, and ReferenceListUniversalProductAttribute.
- Air Price child classes are ReferenceListAmenity and ReferenceListBrand.
- FareRules child class is ReferenceListFlight.
- Search Ancillaries child class is ReferenceListFlight.
- Seat Map child class is ReferenceListSeatingChart.
- Hotel Availability child class is ReferenceListPropertyDates.
- Reservation and Reservation Workbench child classes are ReferenceListAmenity, ReferenceListBrand, and ReferenceListUniversalProductAttribute.
- Exchange Search child classes are ReferenceListBrand, ReferenceListFlight, and ReferenceListExchangedPrice.
- Reservation Receipt child classes are ReferenceListOffer and ReferenceListTraveler.
- Book_Traveler child class is ReferenceListTraveler.
    Example: ReferenceListFlight

  - `ErrorResponse.ReferenceList.id` (string)
    Uniquely identifies for the Reference List

  - `ErrorResponse.CurrencyRateConversion` (array)

  - `ErrorResponse.CurrencyRateConversion.@type` (string)

  - `ErrorResponse.CurrencyRateConversion.SourceCurrency` (object, required)
    Currency codes are the three-letter alphabetic codes that represent the various currencies used throughout the world.  
Unless changed in the request, the currency is the default associated with your provisioned PCC from Travelport.  
For Hotel: SourceCurrency is based on the location of the hotel and used for all rates in the response. TargetCurrency is the currency code sent in the request in requestedCurrency.

  - `ErrorResponse.CurrencyRateConversion.SourceCurrency.value` (string)
    An ISO 4217 currency code.
    Example: USD

  - `ErrorResponse.CurrencyRateConversion.SourceCurrency.codeAuthority` (string)
    Currency code authority
    Example: ISO 4217

  - `ErrorResponse.CurrencyRateConversion.SourceCurrency.decimalPlace` (integer)
    Number of decimal places for the currency.
    Example: 4

  - `ErrorResponse.CurrencyRateConversion.SourceCurrency.decimalAuthority` (string)
    Currency code decimal authority
    Example: ISO 4217

  - `ErrorResponse.CurrencyRateConversion.ConversionRate` (object, required)
    Conversion rate of SourceCurrency value to TargetCurrency value. This value can be used to calculate, independently of the API, conversion for the rates in the response. The response does not convert any amounts.

  - `ErrorResponse.CurrencyRateConversion.ConversionRate.value` (number)

  - `ErrorResponse.CurrencyRateConversion.ConversionRate.rateAuthority` (string)
    Contextual rate authority
    Example: ISO 4217

  - `ErrorResponse.CurrencyRateConversion.ConversionRate.rateAsOf` (string)
    Rate as of
    Example: 2026-08-07T12:12:00Z

  - `ErrorResponse.Pagination` (object)
    Pagination object used when result sets span across a number of pages.

  - `ErrorResponse.Pagination.@type` (string, required)
    Example: Pagination

  - `ErrorResponse.Pagination.page` (integer, required)
    The current page number of the full result set
    Example: 1

  - `ErrorResponse.Pagination.pageSize` (integer, required)
    The total number of items on this page
    Example: 20

  - `ErrorResponse.Pagination.totalPages` (integer, required)
    The total number of pages in this result set
    Example: 5

  - `ErrorResponse.Pagination.totalItems` (integer, required)
    The total number of pages in this result set
    Example: 100

## Response 404 fields (application/json):

  - `ErrorResponse` (object)
    Base common error response

  - `ErrorResponse.@type` (string)
    Example: response

  - `ErrorResponse.transactionId` (string)
    A unique system-generated (128 bit GUID format) transaction/tracking id for a single request and response (i.e. for a single transaction) used for internal tracking and troubleshooting.  
Also known as E2ETrackingId.  
Not returned in all Hotel API responses.
    Example: 49f58f5f-c443-43b4-9f5d-be405fd00a01

  - `ErrorResponse.traceId` (string)
    Used in hospitality workflows to provide a unique transaction or tracking id for a single request and response.  
For Air Eligibility, returned if a custom trace ID was sent in the request header.  
For Hotel Rules, returned if a custom trace ID was sent in the request header.
    Example: TraceID_123456

  - `ErrorResponse.correlationId` (string)
    Identifier used to correlate hotel API invocations across a multi-call business flows.

  - `ErrorResponse.reservationStatus` (string)
    Status of reservation or offer completion.
    Enum: "Success", "Fail", "Partial", "Pending", "OnHold", "Retry", "Other"

  - `ErrorResponse.Result` (object)
    Returns the error and/or warning message information, if applicable.

  - `ErrorResponse.Result.@type` (string)
    Discriminator class Result only
    Example: Result

  - `ErrorResponse.Result.status` (string)
    The status of an error or warning
    Enum: "Not processed", "Incomplete", "Complete", "Unknown"

  - `ErrorResponse.Result.Error` (array)
    A list of error information returned at the provider level for a response.

  - `ErrorResponse.Result.Error.@type` (string, required)
    Discriminator classes Error or ErrorDetail
    Example: ErrorDetail

  - `ErrorResponse.Result.Error.StatusCode` (integer)
    Http standard response code
    Example: 200

  - `ErrorResponse.Result.Error.Message` (string)
    The Travelport standardized error or warning message
    Example: No flights found.

  - `ErrorResponse.Result.Error.NameValuePair` (array)

  - `ErrorResponse.Result.Error.NameValuePair.value` (string)
    Text directly related to name description, providing more detail. May have character restrictions based on remark type (e.g. Free Text limitations: 84 characters, alphanumeric and some special characters).
    Example: Sunday

  - `ErrorResponse.Result.Error.NameValuePair.id` (string)
    Optional internally referenced id
    Example: 6

  - `ErrorResponse.Result.Error.NameValuePair.name` (string, required)
    Key, categorizing the type of remark or error.
    Example: Day1

  - `ErrorResponse.Result.Warning` (array)
    A list of warning information returned at the provider level for a response.

  - `ErrorResponse.Result.Warning.@type` (string, required)
    Discriminator classes Warning or WarningDetail
    Example: WarningDetail

  - `ErrorResponse.Result.Warning.StatusCode` (integer)
    Http standard response code
    Example: 200

  - `ErrorResponse.Result.Warning.Message` (string)
    The Travelport standardized error or warning message
    Example: Customer Loyalty could not be applied.

  - `ErrorResponse.Result.Warning.NameValuePair` (array)

  - `ErrorResponse.Identifier` (object)
    A globally unique identifier key often used to reference a given option (such as Pricing, Booking, Rules, or additional workflows) or to retrieve information (such as Hotel pagination).

  - `ErrorResponse.Identifier.value` (string)
    Unique offer identifier that can be sent in subsequent payload requests to reference this offer.
When used for reference flight calls, the CatalogProductOfferingsIdentifier will be the transaction identifier from the Search, Next Leg Search, or Flight Specific Search response in CatalogProductOfferings/Identifier/value.
If you choose to pull the CatalogProductOfferingsIdentifier from the Price response instead (OfferListResponse/Identifier/value), either full or reference payload, please note for subsequent Add Offer requests you must remove the _PC appended to the end of the value in the AirPrice response (e.g., change value: '93d2091d-3d04-48ab-8091-6ae1525f02ea_PC' to value: '93d2091d-3d04-48ab-8091-6ae1525f02ea').
When building an AirPrice or Add Offer reference payload request:
- Look for the CatalogProductOfferingIdentifier (ex: o1) in a Search response at CatalogProductOfferings/CatalogProductOffering/id or a Price response at OfferListResponse/OfferID/id.
- Look for the ProductIdentifier (ex: p0) in a Search response at CatalogProductOfferings/CatalogProductOffering/ProductBrandOptions/ProductBrandOffering/Product/productRef or from a Price response at OfferListResponse/OfferID/Product/id.

When returned from a Workbench, this value is the workbench identifier that must be sent in all subsequent requests for this workbench session.
When returned from Air Exchange Eligibility, value is the ticket number sent with the eligibility request.
When used specifically for form of payment, the value will begin with the characters 'FOP'. Similarly, the OfferIdentifier associated will begin with the character 'O'.
For Hotel Create Reservation (Reference Payload), send the value from the Availability response in CatalogOffering/id or the value from SearchComplete returned in propertyItems/lowestPublicAvailableRate/rateKey/value.
Results from Hotel Availability and Hotel SearchComplete are stored in the cache for 30 minutes. If the offers expire before booking, you must send a new request.
    Example: A0656EFF-FAF4-456F-B061-0161008D7C4E

  - `ErrorResponse.Identifier.authority` (string)
    Name of the supplier system that created this identifier - the source of information.  
For AirPrice, please note that GDS offers return the value 'Travelport' in authority while NDC offers return the carrier code of the issuing NDC carrier.  
When returned from Air Exchange Eligibility, authority is always 'Travelport' as the transaction issuer.  
For Hotels, authority indicates which supplier returned the lowest available rate for that property: either 'TVPT' (Travelport) or 'BKNG' (booking.com). Booking.com access requires additional provisioning and a direct agreement with the supplier. Authority is not returned if the property is closed or returns an error.  
For Hotel Create Reservation (Full Payload) and Sync Reservation send the value from the Availability response in CatalogOffering/Identifier/authority for the instance you want to book.
    Example: TVPT

  - `ErrorResponse.NextSteps` (object)
    Container for the steps that describe actions that may be taken on the containing object.  
Not applicable for an Eligibility or Exchange response.

  - `ErrorResponse.NextSteps.baseURI` (string, required)
    The base portion of the URI in order to shorten the uris in the individual steps

  - `ErrorResponse.NextSteps.id` (string)
    Optional internally referenced id
    Example: 5

  - `ErrorResponse.NextSteps.NextStep` (array, required)

  - `ErrorResponse.NextSteps.NextStep.value` (string)
    Example: www.resourcelocation.com

  - `ErrorResponse.NextSteps.NextStep.id` (string)
    Identifier for the Next Step
    Example: 2

  - `ErrorResponse.NextSteps.NextStep.action` (string, required)
    The action this next step is intended to achieve
    Example: cancel

  - `ErrorResponse.NextSteps.NextStep.method` (string, required)
    Describes the set of potential methods that can be taken after an operation.
    Enum: "GET", "DELETE", "PUT", "POST"

  - `ErrorResponse.NextSteps.NextStep.description` (string)
    Additional clarification for the next step
    Example: remove offer from the order

  - `ErrorResponse.ReferenceList` (array)

  - `ErrorResponse.ReferenceList.@type` (string, required)
    Discriminator
- Air Search child classes are ReferenceListAmenity, ReferenceListBrand, ReferenceListFlight, ReferenceListProduct, ReferenceListTermsAndConditions, and ReferenceListUniversalProductAttribute.
- Air Price child classes are ReferenceListAmenity and ReferenceListBrand.
- FareRules child class is ReferenceListFlight.
- Search Ancillaries child class is ReferenceListFlight.
- Seat Map child class is ReferenceListSeatingChart.
- Hotel Availability child class is ReferenceListPropertyDates.
- Reservation and Reservation Workbench child classes are ReferenceListAmenity, ReferenceListBrand, and ReferenceListUniversalProductAttribute.
- Exchange Search child classes are ReferenceListBrand, ReferenceListFlight, and ReferenceListExchangedPrice.
- Reservation Receipt child classes are ReferenceListOffer and ReferenceListTraveler.
- Book_Traveler child class is ReferenceListTraveler.
    Example: ReferenceListFlight

  - `ErrorResponse.ReferenceList.id` (string)
    Uniquely identifies for the Reference List

  - `ErrorResponse.CurrencyRateConversion` (array)

  - `ErrorResponse.CurrencyRateConversion.@type` (string)

  - `ErrorResponse.CurrencyRateConversion.SourceCurrency` (object, required)
    Currency codes are the three-letter alphabetic codes that represent the various currencies used throughout the world.  
Unless changed in the request, the currency is the default associated with your provisioned PCC from Travelport.  
For Hotel: SourceCurrency is based on the location of the hotel and used for all rates in the response. TargetCurrency is the currency code sent in the request in requestedCurrency.

  - `ErrorResponse.CurrencyRateConversion.SourceCurrency.value` (string)
    An ISO 4217 currency code.
    Example: USD

  - `ErrorResponse.CurrencyRateConversion.SourceCurrency.codeAuthority` (string)
    Currency code authority
    Example: ISO 4217

  - `ErrorResponse.CurrencyRateConversion.SourceCurrency.decimalPlace` (integer)
    Number of decimal places for the currency.
    Example: 4

  - `ErrorResponse.CurrencyRateConversion.SourceCurrency.decimalAuthority` (string)
    Currency code decimal authority
    Example: ISO 4217

  - `ErrorResponse.CurrencyRateConversion.ConversionRate` (object, required)
    Conversion rate of SourceCurrency value to TargetCurrency value. This value can be used to calculate, independently of the API, conversion for the rates in the response. The response does not convert any amounts.

  - `ErrorResponse.CurrencyRateConversion.ConversionRate.value` (number)

  - `ErrorResponse.CurrencyRateConversion.ConversionRate.rateAuthority` (string)
    Contextual rate authority
    Example: ISO 4217

  - `ErrorResponse.CurrencyRateConversion.ConversionRate.rateAsOf` (string)
    Rate as of
    Example: 2026-08-07T12:12:00Z

  - `ErrorResponse.Pagination` (object)
    Pagination object used when result sets span across a number of pages.

  - `ErrorResponse.Pagination.@type` (string, required)
    Example: Pagination

  - `ErrorResponse.Pagination.page` (integer, required)
    The current page number of the full result set
    Example: 1

  - `ErrorResponse.Pagination.pageSize` (integer, required)
    The total number of items on this page
    Example: 20

  - `ErrorResponse.Pagination.totalPages` (integer, required)
    The total number of pages in this result set
    Example: 5

  - `ErrorResponse.Pagination.totalItems` (integer, required)
    The total number of pages in this result set
    Example: 100

## Response 500 fields (application/json):

  - `ErrorResponse` (object)
    Base common error response

  - `ErrorResponse.@type` (string)
    Example: response

  - `ErrorResponse.transactionId` (string)
    A unique system-generated (128 bit GUID format) transaction/tracking id for a single request and response (i.e. for a single transaction) used for internal tracking and troubleshooting.  
Also known as E2ETrackingId.  
Not returned in all Hotel API responses.
    Example: 49f58f5f-c443-43b4-9f5d-be405fd00a01

  - `ErrorResponse.traceId` (string)
    Used in hospitality workflows to provide a unique transaction or tracking id for a single request and response.  
For Air Eligibility, returned if a custom trace ID was sent in the request header.  
For Hotel Rules, returned if a custom trace ID was sent in the request header.
    Example: TraceID_123456

  - `ErrorResponse.correlationId` (string)
    Identifier used to correlate hotel API invocations across a multi-call business flows.

  - `ErrorResponse.reservationStatus` (string)
    Status of reservation or offer completion.
    Enum: "Success", "Fail", "Partial", "Pending", "OnHold", "Retry", "Other"

  - `ErrorResponse.Result` (object)
    Returns the error and/or warning message information, if applicable.

  - `ErrorResponse.Result.@type` (string)
    Discriminator class Result only
    Example: Result

  - `ErrorResponse.Result.status` (string)
    The status of an error or warning
    Enum: "Not processed", "Incomplete", "Complete", "Unknown"

  - `ErrorResponse.Result.Error` (array)
    A list of error information returned at the provider level for a response.

  - `ErrorResponse.Result.Error.@type` (string, required)
    Discriminator classes Error or ErrorDetail
    Example: ErrorDetail

  - `ErrorResponse.Result.Error.StatusCode` (integer)
    Http standard response code
    Example: 200

  - `ErrorResponse.Result.Error.Message` (string)
    The Travelport standardized error or warning message
    Example: No flights found.

  - `ErrorResponse.Result.Error.NameValuePair` (array)

  - `ErrorResponse.Result.Error.NameValuePair.value` (string)
    Text directly related to name description, providing more detail. May have character restrictions based on remark type (e.g. Free Text limitations: 84 characters, alphanumeric and some special characters).
    Example: Sunday

  - `ErrorResponse.Result.Error.NameValuePair.id` (string)
    Optional internally referenced id
    Example: 6

  - `ErrorResponse.Result.Error.NameValuePair.name` (string, required)
    Key, categorizing the type of remark or error.
    Example: Day1

  - `ErrorResponse.Result.Warning` (array)
    A list of warning information returned at the provider level for a response.

  - `ErrorResponse.Result.Warning.@type` (string, required)
    Discriminator classes Warning or WarningDetail
    Example: WarningDetail

  - `ErrorResponse.Result.Warning.StatusCode` (integer)
    Http standard response code
    Example: 200

  - `ErrorResponse.Result.Warning.Message` (string)
    The Travelport standardized error or warning message
    Example: Customer Loyalty could not be applied.

  - `ErrorResponse.Result.Warning.NameValuePair` (array)

  - `ErrorResponse.Identifier` (object)
    A globally unique identifier key often used to reference a given option (such as Pricing, Booking, Rules, or additional workflows) or to retrieve information (such as Hotel pagination).

  - `ErrorResponse.Identifier.value` (string)
    Unique offer identifier that can be sent in subsequent payload requests to reference this offer.
When used for reference flight calls, the CatalogProductOfferingsIdentifier will be the transaction identifier from the Search, Next Leg Search, or Flight Specific Search response in CatalogProductOfferings/Identifier/value.
If you choose to pull the CatalogProductOfferingsIdentifier from the Price response instead (OfferListResponse/Identifier/value), either full or reference payload, please note for subsequent Add Offer requests you must remove the _PC appended to the end of the value in the AirPrice response (e.g., change value: '93d2091d-3d04-48ab-8091-6ae1525f02ea_PC' to value: '93d2091d-3d04-48ab-8091-6ae1525f02ea').
When building an AirPrice or Add Offer reference payload request:
- Look for the CatalogProductOfferingIdentifier (ex: o1) in a Search response at CatalogProductOfferings/CatalogProductOffering/id or a Price response at OfferListResponse/OfferID/id.
- Look for the ProductIdentifier (ex: p0) in a Search response at CatalogProductOfferings/CatalogProductOffering/ProductBrandOptions/ProductBrandOffering/Product/productRef or from a Price response at OfferListResponse/OfferID/Product/id.

When returned from a Workbench, this value is the workbench identifier that must be sent in all subsequent requests for this workbench session.
When returned from Air Exchange Eligibility, value is the ticket number sent with the eligibility request.
When used specifically for form of payment, the value will begin with the characters 'FOP'. Similarly, the OfferIdentifier associated will begin with the character 'O'.
For Hotel Create Reservation (Reference Payload), send the value from the Availability response in CatalogOffering/id or the value from SearchComplete returned in propertyItems/lowestPublicAvailableRate/rateKey/value.
Results from Hotel Availability and Hotel SearchComplete are stored in the cache for 30 minutes. If the offers expire before booking, you must send a new request.
    Example: A0656EFF-FAF4-456F-B061-0161008D7C4E

  - `ErrorResponse.Identifier.authority` (string)
    Name of the supplier system that created this identifier - the source of information.  
For AirPrice, please note that GDS offers return the value 'Travelport' in authority while NDC offers return the carrier code of the issuing NDC carrier.  
When returned from Air Exchange Eligibility, authority is always 'Travelport' as the transaction issuer.  
For Hotels, authority indicates which supplier returned the lowest available rate for that property: either 'TVPT' (Travelport) or 'BKNG' (booking.com). Booking.com access requires additional provisioning and a direct agreement with the supplier. Authority is not returned if the property is closed or returns an error.  
For Hotel Create Reservation (Full Payload) and Sync Reservation send the value from the Availability response in CatalogOffering/Identifier/authority for the instance you want to book.
    Example: TVPT

  - `ErrorResponse.NextSteps` (object)
    Container for the steps that describe actions that may be taken on the containing object.  
Not applicable for an Eligibility or Exchange response.

  - `ErrorResponse.NextSteps.baseURI` (string, required)
    The base portion of the URI in order to shorten the uris in the individual steps

  - `ErrorResponse.NextSteps.id` (string)
    Optional internally referenced id
    Example: 5

  - `ErrorResponse.NextSteps.NextStep` (array, required)

  - `ErrorResponse.NextSteps.NextStep.value` (string)
    Example: www.resourcelocation.com

  - `ErrorResponse.NextSteps.NextStep.id` (string)
    Identifier for the Next Step
    Example: 2

  - `ErrorResponse.NextSteps.NextStep.action` (string, required)
    The action this next step is intended to achieve
    Example: cancel

  - `ErrorResponse.NextSteps.NextStep.method` (string, required)
    Describes the set of potential methods that can be taken after an operation.
    Enum: "GET", "DELETE", "PUT", "POST"

  - `ErrorResponse.NextSteps.NextStep.description` (string)
    Additional clarification for the next step
    Example: remove offer from the order

  - `ErrorResponse.ReferenceList` (array)

  - `ErrorResponse.ReferenceList.@type` (string, required)
    Discriminator
- Air Search child classes are ReferenceListAmenity, ReferenceListBrand, ReferenceListFlight, ReferenceListProduct, ReferenceListTermsAndConditions, and ReferenceListUniversalProductAttribute.
- Air Price child classes are ReferenceListAmenity and ReferenceListBrand.
- FareRules child class is ReferenceListFlight.
- Search Ancillaries child class is ReferenceListFlight.
- Seat Map child class is ReferenceListSeatingChart.
- Hotel Availability child class is ReferenceListPropertyDates.
- Reservation and Reservation Workbench child classes are ReferenceListAmenity, ReferenceListBrand, and ReferenceListUniversalProductAttribute.
- Exchange Search child classes are ReferenceListBrand, ReferenceListFlight, and ReferenceListExchangedPrice.
- Reservation Receipt child classes are ReferenceListOffer and ReferenceListTraveler.
- Book_Traveler child class is ReferenceListTraveler.
    Example: ReferenceListFlight

  - `ErrorResponse.ReferenceList.id` (string)
    Uniquely identifies for the Reference List

  - `ErrorResponse.CurrencyRateConversion` (array)

  - `ErrorResponse.CurrencyRateConversion.@type` (string)

  - `ErrorResponse.CurrencyRateConversion.SourceCurrency` (object, required)
    Currency codes are the three-letter alphabetic codes that represent the various currencies used throughout the world.  
Unless changed in the request, the currency is the default associated with your provisioned PCC from Travelport.  
For Hotel: SourceCurrency is based on the location of the hotel and used for all rates in the response. TargetCurrency is the currency code sent in the request in requestedCurrency.

  - `ErrorResponse.CurrencyRateConversion.SourceCurrency.value` (string)
    An ISO 4217 currency code.
    Example: USD

  - `ErrorResponse.CurrencyRateConversion.SourceCurrency.codeAuthority` (string)
    Currency code authority
    Example: ISO 4217

  - `ErrorResponse.CurrencyRateConversion.SourceCurrency.decimalPlace` (integer)
    Number of decimal places for the currency.
    Example: 4

  - `ErrorResponse.CurrencyRateConversion.SourceCurrency.decimalAuthority` (string)
    Currency code decimal authority
    Example: ISO 4217

  - `ErrorResponse.CurrencyRateConversion.ConversionRate` (object, required)
    Conversion rate of SourceCurrency value to TargetCurrency value. This value can be used to calculate, independently of the API, conversion for the rates in the response. The response does not convert any amounts.

  - `ErrorResponse.CurrencyRateConversion.ConversionRate.value` (number)

  - `ErrorResponse.CurrencyRateConversion.ConversionRate.rateAuthority` (string)
    Contextual rate authority
    Example: ISO 4217

  - `ErrorResponse.CurrencyRateConversion.ConversionRate.rateAsOf` (string)
    Rate as of
    Example: 2026-08-07T12:12:00Z

  - `ErrorResponse.Pagination` (object)
    Pagination object used when result sets span across a number of pages.

  - `ErrorResponse.Pagination.@type` (string, required)
    Example: Pagination

  - `ErrorResponse.Pagination.page` (integer, required)
    The current page number of the full result set
    Example: 1

  - `ErrorResponse.Pagination.pageSize` (integer, required)
    The total number of items on this page
    Example: 20

  - `ErrorResponse.Pagination.totalPages` (integer, required)
    The total number of pages in this result set
    Example: 5

  - `ErrorResponse.Pagination.totalItems` (integer, required)
    The total number of pages in this result set
    Example: 100