Reference
ASSIGNMENT_NOT_FOUND
Role assignment not found
Role assignment not found
HTTP status 404 Not Found, code ASSIGNMENT_NOT_FOUND.
What it means#
No role assignment with that id exists for the user and account.
What to do#
Read the user's account roles and use an assignment from the list.
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.