A complete guide to the TTA command in Amadeus โ how to add one or more passengers to an existing TST, including infant passengers and multiple TST records.
When a PNR contains several passengers and multiple TSTs, the system needs to know exactly which travellers belong to which ticket record. The TTA command is the entry that handles this association. It allows you to add one or more passengers to an existing TST, including infant passengers, and it works whether you are assigning a single traveller to one TST or building several TSTs across a group. TTA is the natural counterpart to the TTS command โ where TTS splits passengers out of a TST, TTA brings them back in. This guide explains what TTA does, shows the syntax for every scenario, and explains when to use it.
What Does the TTA Command Do?
TTA is the Amadeus GDS command used to add one or more passengers to an existing TST.
Category: TST / Ticketing.
The TTA entry allows you to associate specific passengers with one or more TSTs, including infant passengers. Nothing is priced or issued during this step โ TTA simply tells the system which travellers belong on which ticket record.
This makes TTA essential in multi-passenger bookings, family bookings with infants, and group PNRs where TSTs have been split and need to be rebuilt or restructured.
Add a Passenger to the Existing TST
When the PNR contains a single TST, specify the passenger number:
TTA/P2This adds passenger 2 to the only existing TST in the PNR.
Add Multiple Passengers to a Specific TST
To add several passengers to one particular TST, list the passenger numbers separated by a comma and specify the TST:
TTA/P3,5/T2This adds passengers 3 and 5 to TST 2, associating both travellers with that specific ticket record.
Add an Infant to Multiple TSTs
Infant passengers are handled with the /INF indicator. This is important because infants are often associated with an adultโs ticket record rather than their own:
TTA/P3/INF/T2,4This adds infant passenger 3 to TSTs 2 and 4. Always use the /INF indicator when the passenger is an infant; without it, the system may reject the association or apply the wrong fare category.
Add Multiple Passengers to Multiple TSTs
To add a range of passengers to a range of TSTs, use hyphens to indicate the range:
TTA/P1-3/T1-3This adds passengers 1 through 3 to TSTs 1 through 3 in a single entry โ useful for group bookings where all passengers need to be assigned across multiple ticket records.
When to Use TTA
Use TTA when you need to associate passengers with an existing TST, especially when a TST must be assigned to specific passengers or multiple TSTs. Typical scenarios include:
- Rebuilding a TST after passengers were split out using TTS.
- Adding a child or infant to the correct TST after repricing.
- Assigning specific passengers to a reissued TST.
- Group bookings where passengers need to be distributed across several TSTs.
- Correcting a TST that was created without the right passenger associations.
How TTA Fits Into Your Ticketing Workflow
A typical ticketing session using TTA might look like this:
- Retrieve the PNR and display the TSTs to see the current passenger groupings.
- Decide which passengers need to be added to which TST.
- Enter
TTA/P2,TTA/P3,5/T2, or the appropriate entry. - For infants, always include the
/INFindicator. - Redisplay the TSTs to confirm the passenger associations are correct.
- Continue with pricing, reissue, or ticketing for each group.
How TTA Differs from TTS
- TTS โ splits passengers out of an existing TST.
- TTA โ adds passengers to an existing TST.
- TTH โ displays the TST history to confirm the changes made.
Together they give you full control over how passengers are grouped across TSTs in a multi-passenger PNR.
Frequently Asked Questions
What does TTA/P2 do?
It adds passenger 2 to the only existing TST in the PNR.
How do I add an infant to a TST?
Include the /INF indicator, for example TTA/P3/INF/T2,4.
Can I add passengers to more than one TST at once?
Yes. List the TST numbers, for example TTA/P3/T2,4 or a range such as TTA/P1-3/T1-3.
Conclusion
The TTA command gives you precise control over which passengers belong to which TST in Amadeus. Whether you are adding a single traveller to the only TST, associating multiple passengers with a specific TST, or attaching an infant to several records, TTA handles the association cleanly and without touching the fare itself. Use TTA/P2 for a single passenger, TTA/P3,5/T2 for several passengers on one TST, TTA/P3/INF/T2,4 for infants, and range entries such as TTA/P1-3/T1-3 for group restructuring. Paired with TTS and TTH, TTA completes the TST restructuring toolkit and ensures every passenger is correctly linked to their ticket record.
