Reference
CODE_NOT_FOUND
Code not found
Code not found
HTTP status 404 Not Found, code CODE_NOT_FOUND.
What it means#
No code with that text or id can be used here: it does not exist, it is inactive or archived, or it is restricted to other sales channels. The three are deliberately indistinguishable.
What to do#
Check the code for typing mistakes. A buyer who is sure of it should ask the organiser whether it is valid on this channel.
On the wire#
Every error response carrying this code names this page in error.moreInfo,
with the request id in the query string. See Error codes for
the response shape and the list of every code.