| CustomerCounts | Categorization of all Customers in a reservation or request.CustomerCounts- Categorization of all Customers in a reservation or request. The total number of Customers will equal the sum of the Count attribute of all CustomerCount objects in this collection and assumes that the AgeQualifyingCode will be used to determine how each Customer should be billed. Each booking segment has its own CustomerCount attribute to help determine billing, headcount, etc. The CustomerCount collection cannot be modified using a delta. It must be resent in its entirety if modified. |
| MultimodalOffer | Multimodal offer influencers.Traveler and trip information used for targeted multi-modal offers. |
 PackageRequest | Information identifying the package for which availability is being requested. |
| POS | Point of sale object.Point of Sale (POS) identifies the party or connection channel making the request. |
| TPA_Extensions | A placeholder in the schema to allow for additional elements and attributes to be included per Trading Partner Agreement (TPA).Allows extensions to be added to the OpenTravel specification per trading partner agreement. |
| URL | An alternative method of identifying the full tour package. Web site address, in IETF specified format. |
| MaxResponses | A positive integer value that indicates the maximum number of responses desired in the return. |
| AltLangID | The alternate language for a customer or message encoded as ISO 639-3. |
| CorrelationID | Allows end-to-end correlation of log messages with the corresponding Web service message throughout the processing of the Web service message. |
| EchoToken | A reference for additional message identification, assigned by the requesting host system. |
| PrimaryLangID | The primary language preference for the message encoded as ISO 639-3. |
| RetransmissionIndicator | When true, indicates the message is being re-sent after a failure. |
| SequenceNmbr | The sequence number of the transaction assigned by the sending system for ordered message processing or message resynchronization. |
| Target | Test or Production target system indicator. |
| TargetName | The name of the Test or Production system. |
| TimeStamp | ISO 8601 encoded timestamp indicating the creation date and time of the message. |
| TransactionIdentifier | Unique identifier to relate all messages within a transaction (e.g. this would be sent in all request and response messages that are part of an on-going transaction). |
| TransactionStatusCode | This indicates where this message falls within a sequence of messages. |
| Version | The OpenTravel message version indicated by a decimal value. |
| ReqRespVersion | Used to request the version of the payload message desired for the response. |