Amadeus SX Command: Cancel Seat Requests

A complete guide to the SX command in Amadeus — how to cancel seat requests from all segments or specific itinerary segments in a PNR.

SX is the Amadeus GDS command used to cancel seat requests from a PNR.

Category: Advance Seat Request.

It allows you to cancel all existing seat requests or remove seat requests for specific itinerary segments.

Because seat requests are linked to specific segments in the PNR, they must be cleared before certain actions can proceed — most notably name changes in group PNRs, rebooking when the aircraft changes, and reissues that alter the itinerary. SX is the correct tool for removing them cleanly.

Enter the command on its own while the PNR is retrieved:

SX

This cancels all seat requests in the PNR. Use it when the entire itinerary needs a fresh seat selection — for example after a full rebooking, or when preparing a Group PNR for a name change.

To remove seat requests only from selected segments:

SX/S5-6

This cancels seat requests for segments 5 through 6. Other segments keep their existing seat requests. Use it when only part of the itinerary has changed or when the seats on one segment need to be rebooked while the rest stay as they are.

Non-consecutive segments can be listed with commas, for example SX/S2,4,6, to remove seats from specific flights only.

Use SX when you need to remove existing advance seat requests from all segments or from specific segments of a PNR. Typical scenarios include:

• Preparing a Group PNR for a name change (seat items must be cleared first).
• Rebooking onto a different aircraft where the original seats no longer exist.
• Changing the itinerary so that seat assignments are no longer valid.
• Removing seat requests after a schedule change that moved the flight.
• Clearing seats on a segment that has been rescheduled to a different time.
• Reassigning seats when the customer changes their seating preference.
• Resetting the PNR before issuing new seat requests after a change.

A typical PNR management session using SX might look like this:

• Retrieve the PNR and confirm that seat requests are present.
• Identify which segments need to be cleared.
• Enter SX to cancel all seat requests, or SX/S5-6 for specific segments.
• End the transaction to save the change.
• Proceed with the original action — rebooking, name change, or reissue.
• Reassign seats after the change using the appropriate seat request entry.

• SX → cancels seat requests from the PNR.
• ST → creates seat requests for specific segments and passengers.
• SM → displays the seat map for a specific flight segment.
• RH → displays the PNR history, including seat request changes.
• RP → changes the responsible office and related office assignments.
• TTE → deletes TSTs from the PNR when restructuring the booking.

Important: Cancelling seat requests removes the assigned seats from the PNR. If the segments remain on the same flights and aircraft, the seats may be lost and will need to be requested again.

Check with the customer before clearing seats if the assignment was already confirmed and the itinerary is not changing — the agent should be clear about what will be lost and what will need to be rebooked.

What does SX do in Amadeus?

SX cancels seat requests from a PNR, either for all segments or for specific segments.

What does SX/S5-6 mean?

It cancels seat requests for segments 5 through 6, leaving seats on other segments intact.

Why do I need to cancel seat requests before a name change?

Because seat items are linked to the passenger name. The system blocks the name change until the seat requests are removed, which is why you receive the error CANCEL SEAT ITEM OR SPLIT PNR PRIOR TO NAME RE-ENTER.

Can I restore the seats after cancelling them?

Yes, but you will need to make a new seat request using the appropriate entry after the change has been completed. The original seats may or may not still be available.