Standard GDS Message Composition
GDS Messages have their own specific compositon to them. This is essential to know if you wish to read the GDS messages that come into your Queue.
Element and Sequence | Definition | Example(s) |
---|---|---|
Address (Mandatory) | The address of the person you are sending the message to. Each address in the address element will be composed of: a.) three-letter city/airport code b.) two-letter office function designator c.) Airline Designator | PARRMAF |
Communications Reference (Mandatory) | This line is comprised of 2 elements a.) The address of the person the message is from b.) The date and time | .BEYRM4W 181545 |
Message Identifier (Mandatory) | 3-Digit code which identifies the Type of message | RLR |
Record Locator (Mandatory) | 6 Digit Record Locator found in the bottom right hand corner of all GDS reservations. | 123ABC |
Name (Mandatory) | The name of the passengers on the reservation, preceeded by the appropriate number of seats to be reserved for that family name. Tips: a.) When a hypenated family name is involved join both elements of the name by deleting the space. ie: Sara Smith-Johnson becomes 1SMITHJOHNSON/SARA | 1Saunders/Alex 2Clack/Jeremy/Andrew |
Segment Element (Mandatory) | The Segment element must be indicated to show from where and how the passenger will get to the boarding point of each indivdual segment. The Segment element must include: a.) Airline Designator b.) Flight Number c.) Reservations Booking Designator aka Fare Class Code d.) Date e.) Month f.) Boarding Point (3 letter airport code) g.) Deplaning Point (3 letter airport code) h.)Action/Advice/Status Code i.) Number of seats j.) Times, in 24-Hr Clock k.) Day Change Indicator (Only used when the flight lands on a different day than it started) | AC3242Y27MAY YYZYHR SS2/0900 1300 or AC7459Y29MAY YVRNRT SS2/1400 1700/2 |
Continuation Element (Optional) | A continuation element is defined as the set of one or more confirmed segments that provide on ward travel. Continuation segments follow the same syntax as a Segment element, however, a continuation element uses only one Advice code (HK) and can be actioned with only one action code (XX - to remove it from the itinerary). Continuation segments can be from any airline. They display in ameliaRES as a non-actionable segment. | AC3242Y27MAY YYZYHR HK2/0900 1300 |
Supplimentary (Optional) | The supplementary element in a reservation message is provided to enter any item that cannot be included in other elements of the message | SSR OTHS 1S RLOC 34N22D |
Supplimentary 2nd Line (Optional) | Same as above. Can be used for OSI or SSR lines | |
End of Text (Mandatory) | Special character auto inserted by communications. Do not delete it from a message. |