A practical guide for travel agents on fixing the E-Ticketing Function Not Supported error in Amadeus โ why it happens and how to check supported functions with HE ETT.
The E-Ticketing Function Not Supported error is a common Amadeus ticketing error that appears when an agent tries to perform an e-ticketing function and the system rejects the request. Unlike most ticketing errors, the cause here is not a mistake in the PNR or a missing element โ it is an airline limitation. Some carriers do not support every e-ticketing function in every market, and when you attempt an unsupported function, Amadeus blocks it. This article explains which functions are affected, why the restriction exists, and the exact command you can use to check what is supported for any airline in your market.
When the Error Appears
This error appears when the agent tries to perform an e-ticketing function, such as:
- Ticket history display โ
TWH - Void โ
TRDC - Refund โ
TRFP - Exchange โ EMD reissue against an e-ticket
- Revalidation โ
TTP/ETRV
Why the Error Happens
Some airlines do not support all e-ticketing functions in all markets. The function you are trying to perform is simply not supported by the airline in your specific market.
This is a commercial and technical decision made by the airline, not a problem with your PNR, your office profile, or your Amadeus access. The same function may work perfectly for another airline, or even for the same airline in a different market.
Solution: Check Supported Functions with HE ETT
Check which functions are supported for the airline in your market using the command:
HE ETT xxwhere xx is the 2-letter airline code.
Example:
HE ETT 6XHow to Read the Results
The system displays a list of supported functions for that airline in your market. Look for the specific function you are trying to perform โ for example REFUND, VOID, REVALIDATION, or HISTORY.
- Y โ the function is supported.
- N โ the function is not supported by this airline in your market.
If the function shows N, there is no workaround inside Amadeus. The transaction must be handled through the airline directly or through an alternative process approved by the carrier.
Quick Fix Checklist
- Note which e-ticketing function triggered the error.
- Identify the 2-letter airline code involved.
- Run
HE ETT xxwith the airline code. - Locate your function in the displayed list.
- Confirm whether it shows Y or N.
- If it shows N, escalate to the airline or use an approved alternative process.
Frequently Asked Questions
What causes the E-Ticketing Function Not Supported error?
The airline does not support that specific e-ticketing function in your market. It is an airline limitation, not a PNR issue.
How do I check which functions are supported?
Use HE ETT xx where xx is the 2-letter airline code. The system lists each function with Y or N.
Is there a way to force an unsupported function?
No. If the function shows N, Amadeus cannot process it. Contact the airline or follow their approved alternative procedure.
Conclusion
The E-Ticketing Function Not Supported error is not a system fault โ it reflects the airlineโs own capabilities in your market. Before spending time troubleshooting the PNR, run HE ETT xx and check whether the function you need is marked Y or N. If it is N, no Amadeus entry will make it work; the request must go through the airline or an approved alternative process. Verifying support first saves time, avoids repeated failures, and gives you a clear, confident answer when a customer asks why a refund, void, or revalidation cannot be processed.
Also Read:
ERROR: NO TAX COULD BE RETRIEVED, PLEASE ADD THEM MANUALLY
MESSAGE SIZE EXCEEDED
CT RJT: ETKT DISALLOWED โ MULTIPLE TOUR CODES
