| CategoryInfo | A specific type of age and/or group qualifier, such as "Adult". Select a value from the pre-defined list or select "Other_" and enter a value known between trading partners in the @Extension attribute. |
| ParticipantNameInfo | Name information for participants. |
| Price | The charges associated with known participant(s), participant category(s) and group information.Base price and taxes associated with the tour and/or activity. |
| 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. |