 Comment | This holds information that pertains to all sites requested.An indication of a new paragraph for a sub-section of a formatted text message. |
| Profiles | This can be used to echo back the profile information of the submitter of the request.A collection of Profile objects or Unique IDs of Profiles. |
| RFP_ID | This is a UniqueID that is associated with an individual RFP. This element repeats to accommodate the IDs of multiple systems.An identifier used to uniquely reference an object in a system (e.g. an airline reservation reference, customer profile reference, booking confirmation number, or a reference to a previous availability quote). |
| Sites | A collection of sites that the response is being submitted for (e.g. a hotel, national sales office, convention center). |
| 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. |