| Type : StringLength1to32 |
| Definition |
| Unique identifier of the member in the program (membership number, account number, etc.). |
| Parents |
| \OTA_CruiseBookRQ\ReservationInfo\GuestDetails\GuestDetail\ContactInfo
\OTA_CruiseBookRS\BookingPayment\GuestPrices\GuestPrice \OTA_CruiseCabinAvailRQ\SearchQualifiers |