

        📚 GDS Academy

        
            
                
                    Amadeus GDS Commands & Lessons | GDS Hub
                    35
                

            
                
                    Galileo GDS Commands & Lessons | GDS Hub
                    27
                

            
                
                    Sabre GDS Commands & Lessons | GDS Hub
                    20
                

                    

        
            🛠 Tools
            Airport Taxes Database
            Airports Database
            Farebase Generator
            Tax Checker
            Airline Special Services

Amadeus SX Command: Cancel Seat Requests

A complete guide to the SX command in Amadeus — how to cancel advance seat request elements from a PNR, either for all segments or for selected ones.

Advance seat requests are one of the most useful services an agent can provide, but they also become an obstacle when the itinerary changes. When a passenger is rebooked, when a name is corrected, when an airline changes equipment, or when a schedule change moves the flight to a different aircraft, existing seat assignments may become invalid — and in some cases they block further changes altogether. The SX command is the Amadeus entry that removes these seat request elements. It allows you to cancel all seat requests in the PNR, or just those tied to specific segments. This guide explains what SX does, the syntax, and when it should be used.

What Does the SX Command Do?

SX is the Amadeus GDS command used to cancel advance seat request elements from a PNR.

Category: Advance Seat Request.

It allows you to cancel all seat requests or cancel seat requests for specific flight 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.

Cancel All Seat Elements

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

SX

This cancels all seat request elements 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.

Cancel Seats for Specific Segments

To remove seat requests only from selected segments:

SX/S2,3

This cancels the seat request elements for segments 2 and 3. 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, and continuous ranges can be indicated with a hyphen — for example SX/S5-6 — to remove seats from specific flights only.

When to Use SX

Use SX when you need to remove existing advance seat requests from 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.

How SX Fits Into Your Seat Management Workflow

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

Retrieve the PNR with RT and confirm that seat requests are present.
Identify which segments need to be cleared.
Enter SX to cancel all seat requests, or SX/S2,3 for specific segments.
End the transaction to save the change.
Proceed with the original action — rebooking, name change, or reissue.
Review the new seat map with SM and reassign seats with ST or STG.

How SX Relates to Other Seat Commands

SX → cancels advance seat request elements from the PNR.
ST → requests seats for individual passengers.
STG → requests seats for group PNRs.
SM → displays the aircraft seat map for a flight or segment.
RT → retrieves the live PNR before managing seats.
RH → displays the PNR history, including seat request changes.

The sequence is consistent: SM displays the map, ST or STG requests seats, and SX cancels them when the booking changes.

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.

Always 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.

Frequently Asked Questions

What does SX do in Amadeus?

SX cancels advance seat request elements from a PNR, either for all segments or for specific segments.

What does SX/S2,3 mean?

It cancels the seat request elements for segments 2 and 3, 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 may 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 ST or STG after the change has been completed. The original seats may or may not still be available.

How do I check which seats were previously assigned?

Use RH to review the PNR history, which records the seat request and cancellation entries.

Conclusion

The SX command is the correct way to clear advance seat request elements from a PNR in Amadeus. Use SX to cancel all seat requests in the booking, or SX/S2,3 for specific segments where only part of the itinerary has changed. It is essential before certain actions such as name changes in Group PNRs, aircraft changes during rebooking, and reissues that alter the itinerary. Because cancelling seats removes the assignments, always confirm the change with the customer and reassign seats afterwards when the itinerary is final. Paired with SM for seat maps, ST for individual seat requests, STG for group requests, and RH for PNR history, the SX command completes your seat management toolkit and keeps your bookings accurate and ready for every change.