# Create Refund or Passive Offer (deprecated) Endpoint: POST /air/book/airoffer/reservationworkbench/{ReservationResource_Identifier}/offers Version: 11.35.2 Security: bearerAuth ## Path parameters: - `ReservationResource_Identifier` (string, required) The Reservation Identifier ## Query parameters: - `offerType` (string) Specifies the type of Offer that is being created - `offerIdentifier` (string) The offer ID you wish to refund or exchange. Use when multiple offers exist within a reservation. ## 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 ## Request fields (application/json): - `@type` (string, required) Discriminator - Air Price child classes OfferID, Offer, and OfferUpsell. - Reservation and ReservationWorkbench child classes OfferID, Offer, OfferModify, and OfferUpsell. - Hotel Rules child classes OfferID and Offer. Example: Offer - `id` (string) Offer identifier sent in the reference payload request to book that offer. Not returned in the full payload response; this is the only difference in the two responses. Example: offer_1 - `offerRef` (string) Used to reference another instance of this object in the same message Example: offer_1 - `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). - `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 - `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 - `ContentSource` (string) Indicates the owner the offer or document. Enum: "GDS", "NDC", "LCC", "API" - `parentOfferRef` (string) A reference to the Offer this offer is sold in conjunction with Example: offer_1 - `offerModifyRef` (string) Reference to the new Offer created as a result of this Offer being subject to a schedule change. - `Product` (array, required) Lists the flight or flights for one leg of the itinerary. Repeats for additional leg or legs. - `Product.@type` (string, required) Discriminator. - Air Search child classes are ProductAir and ProductAncillary. - Exchange Search child class is ProductAir. - Ancillary Search child class is ProductAncillary. - Seat Map child class is ProductSeatAvailability. - Air Price child classes are ProductAir and ProductAncillary. - Hotel Availability child classes are ProductHospitality and ProductHospitalityOffer. - Hotel Rules and HotelReservation child classes are ProductHospitality. - All Vehicle APIs child classes are ProductVehicle and ProductAncillaryVehicle. - Reservation and Reservation Workbench child classes are ProductAir, ProductAncillary, ProductHospitality, ProductVehicle, and ProductAncillaryVehicle. Example: ProductAir - `Product.id` (string) Local id within a given message to support referencing this object. Example: product_1 - `Product.productRef` (string) Reference id that corresponds to the product 'id' in ReferenceListProduct.Product. To find flight details for a product, use the ProductRef id to identify the product in ReferenceListProduct.Product, and use the Flight id's (e.g., s3, s4) to match to flight information in ReferenceListFlight.Flight. Example: product_1 - `Price` (object, required) Price includes a summary of the Base, Taxes, and Fees applicable to the offer in the currency indicated. The amounts in Base, TotalTaxes, TotalFees, and TotalPrice are inclusive of all travelers across all PTCs. The amounts in PriceBreakdown apply to one traveler with the PTC returned in that instance. - `Price.@type` (string, required) Discriminator classes Price or PriceDetail Example: PriceDetail - `Price.id` (string) Internally referenced id Example: 2 - `Price.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. - `Price.CurrencyCode.value` (string) An ISO 4217 currency code. Example: USD - `Price.CurrencyCode.codeAuthority` (string) Currency code authority Example: ISO 4217 - `Price.CurrencyCode.decimalPlace` (integer) Number of decimal places for the currency. Example: 4 - `Price.CurrencyCode.decimalAuthority` (string) Currency code decimal authority Example: ISO 4217 - `Price.Base` (number) Base price before taxes and fees. For Hotel, may not be returned by all suppliers. Example: 20.2 - `Price.TotalTaxes` (number) Total taxes applied to the base price. For Hotel, may not be returned by all suppliers. Example: 34.4 - `Price.TotalFees` (number) Total fees included in Total Price. Example: 201 - `Price.TotalPrice` (number) Total price of this offer including the base price and all taxes and fees. Example: 34 - `Price.VendorCurrencyTotal` (object) No longer used. Previously used to expose the local vendor currency when it is different to the purchased currency - `Price.VendorCurrencyTotal.@type` (string) - `Price.VendorCurrencyTotal.currencySource` (string) The system requesting or returning the currency code specified in the attribute Enum: "Supplier", "Charged", "Requested" - `Price.VendorCurrencyTotal.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 - `Price.VendorCurrencyTotal.Taxes` (object) Summary of all individual taxes. Child class TaxesDetail provides the breakdown of individual taxes. - `Price.VendorCurrencyTotal.Taxes.@type` (string, required) Discriminator class is TaxesDetail Example: TaxesDetail - `Price.VendorCurrencyTotal.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 - `Price.VendorCurrencyTotal.Taxes.TaxInfo` (array) Returned for TripChange APIS only. - `Price.VendorCurrencyTotal.Taxes.TaxInfo.@type` (string) Example: TaxInfo - `Price.VendorCurrencyTotal.Taxes.TaxInfo.TaxCode` (string, required) The tax code Example: XF - `Price.VendorCurrencyTotal.Taxes.TaxInfo.Amount` (number, required) The amount of the tax applied - `Price.VendorCurrencyTotal.Taxes.TaxInfo.TaxBreakdown` (array, required) The breakdown of the tax for this tax code - `Price.VendorCurrencyTotal.Taxes.TaxInfo.TaxBreakdown.@type` (string) Example: TaxInfo - `Price.VendorCurrencyTotal.Taxes.TaxInfo.TaxBreakdown.AirportCode` (string, required) The airport location the tax applies to Example: MIA - `Price.VendorCurrencyTotal.Taxes.TaxInfo.TaxBreakdown.Amount` (number) The amount of the tax applied - `Price.VendorCurrencyTotal.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. - `Price.VendorCurrencyTotal.Fees.@type` (string, required) Discriminator. Child class FeesDetail Example: FeesDetail - `Price.VendorCurrencyTotal.Fees.TotalFees` (number) Total fees included in the TotalPrice. Supports up to 4 decimal places; decimal place needs to be included. Example: 111.11 - `Price.VendorCurrencyTotal.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 - `Price.VendorCurrencyTotal.Total` (number) Specifies the total price including base + taxes + fees Example: 30.13 - `Price.VendorCurrencyTotal.approximateInd` (boolean) True if this amount has been converted from the original amount Example: true - `TermsAndConditionsFull` (array) For Hotel Rules and Reservation responses, this array will contain a single TermsAndConditionsFullHospitality entry. Cancellation terms with multiple time periods are represented within that entry's CancelPenalty array rather than as multiple TermsAndConditionsFull entries. - `TermsAndConditionsFull.@type` (string, required) Discriminator - Air Price child classes are TermsAndConditionsFullAir and TermsAndConditionsFullAncillary. - Hotel Rules and Reservation class is TermsAndConditionsFullHospitality. - Vehicle Rules and Reservation class is TermsAndConditionsFullVehicle. - Reservation and Reservation Workbench APIs child classes are TermsAndConditionsFullAir, TermsAndConditionsFullAncillary, TermsAndConditionsFullHospitality, TermsAndConditionsFullVehicle, TermsAndConditionsFullVehicle, and TermsAndConditionsFullScheduleChange. Example: TermsAndConditionsFullAir - `TermsAndConditionsFull.id` (string) Local identifier within a given message for this object. Example: TC_1 - `TermsAndConditionsFull.termsAndConditionsRef` (string) Used to reference another instance of this object in the same message. Example: TC_1 - `passiveOfferInd` (boolean) Indicates aggregator segment built into PNR. Always send with true when using in a request. If returned true in a response, the Offer is passive for booking purposes. Example: true - `scheduleChangeInd` (boolean) If true, this Offer is subject to a schedule change. ## Response 201 fields (application/json): - `OfferListResponse` (object) The response of an Offer list endpoint request, such as AirPrice and Add Offer calls. Defines one or more air offers returned including the offer identifiers and related response data needed for subsequent booking steps. - `OfferListResponse.@type` (string) Example: response - `OfferListResponse.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 - `OfferListResponse.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 - `OfferListResponse.correlationId` (string) Identifier used to correlate hotel API invocations across a multi-call business flows. - `OfferListResponse.reservationStatus` (string) Status of reservation or offer completion. Enum: "Success", "Fail", "Partial", "Pending", "OnHold", "Retry", "Other" - `OfferListResponse.Result` (object) Returns the error and/or warning message information, if applicable. - `OfferListResponse.Result.@type` (string) Discriminator class Result only Example: Result - `OfferListResponse.Result.status` (string) The status of an error or warning Enum: "Not processed", "Incomplete", "Complete", "Unknown" - `OfferListResponse.Result.Error` (array) A list of error information returned at the provider level for a response. - `OfferListResponse.Result.Error.@type` (string, required) Discriminator classes Error or ErrorDetail Example: ErrorDetail - `OfferListResponse.Result.Error.StatusCode` (integer) Http standard response code Example: 200 - `OfferListResponse.Result.Error.Message` (string) The Travelport standardized error or warning message Example: No flights found. - `OfferListResponse.Result.Error.NameValuePair` (array) - `OfferListResponse.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 - `OfferListResponse.Result.Error.NameValuePair.id` (string) Optional internally referenced id Example: 6 - `OfferListResponse.Result.Error.NameValuePair.name` (string, required) Key, categorizing the type of remark or error. Example: Day1 - `OfferListResponse.Result.Warning` (array) A list of warning information returned at the provider level for a response. - `OfferListResponse.Result.Warning.@type` (string, required) Discriminator classes Warning or WarningDetail Example: WarningDetail - `OfferListResponse.Result.Warning.StatusCode` (integer) Http standard response code Example: 200 - `OfferListResponse.Result.Warning.Message` (string) The Travelport standardized error or warning message Example: Customer Loyalty could not be applied. - `OfferListResponse.Result.Warning.NameValuePair` (array) - `OfferListResponse.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). - `OfferListResponse.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 - `OfferListResponse.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 - `OfferListResponse.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. - `OfferListResponse.NextSteps.baseURI` (string, required) The base portion of the URI in order to shorten the uris in the individual steps - `OfferListResponse.NextSteps.id` (string) Optional internally referenced id Example: 5 - `OfferListResponse.NextSteps.NextStep` (array, required) - `OfferListResponse.NextSteps.NextStep.value` (string) Example: www.resourcelocation.com - `OfferListResponse.NextSteps.NextStep.id` (string) Identifier for the Next Step Example: 2 - `OfferListResponse.NextSteps.NextStep.action` (string, required) The action this next step is intended to achieve Example: cancel - `OfferListResponse.NextSteps.NextStep.method` (string, required) Describes the set of potential methods that can be taken after an operation. Enum: "GET", "DELETE", "PUT", "POST" - `OfferListResponse.NextSteps.NextStep.description` (string) Additional clarification for the next step Example: remove offer from the order - `OfferListResponse.ReferenceList` (array) - `OfferListResponse.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 - `OfferListResponse.ReferenceList.id` (string) Uniquely identifies for the Reference List - `OfferListResponse.CurrencyRateConversion` (array) - `OfferListResponse.CurrencyRateConversion.@type` (string) - `OfferListResponse.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. - `OfferListResponse.CurrencyRateConversion.SourceCurrency.value` (string) An ISO 4217 currency code. Example: USD - `OfferListResponse.CurrencyRateConversion.SourceCurrency.codeAuthority` (string) Currency code authority Example: ISO 4217 - `OfferListResponse.CurrencyRateConversion.SourceCurrency.decimalPlace` (integer) Number of decimal places for the currency. Example: 4 - `OfferListResponse.CurrencyRateConversion.SourceCurrency.decimalAuthority` (string) Currency code decimal authority Example: ISO 4217 - `OfferListResponse.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. - `OfferListResponse.CurrencyRateConversion.ConversionRate.value` (number) - `OfferListResponse.CurrencyRateConversion.ConversionRate.rateAuthority` (string) Contextual rate authority Example: ISO 4217 - `OfferListResponse.CurrencyRateConversion.ConversionRate.rateAsOf` (string) Rate as of Example: 2026-08-07T12:12:00Z - `OfferListResponse.Pagination` (object) Pagination object used when result sets span across a number of pages. - `OfferListResponse.Pagination.@type` (string, required) Example: Pagination - `OfferListResponse.Pagination.page` (integer, required) The current page number of the full result set Example: 1 - `OfferListResponse.Pagination.pageSize` (integer, required) The total number of items on this page Example: 20 - `OfferListResponse.Pagination.totalPages` (integer, required) The total number of pages in this result set Example: 5 - `OfferListResponse.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