precondition_failed
412 The record has been changed in the meantime.
Cause
The record changed since you fetched it: the ETag in If-Match no longer matches.
Solution
Fetch the record again, apply your change to the new version and send the new ETag.
Example
{
"type": "https://developers.klantly.com/errors/precondition_failed",
"title": "The record has been changed in the meantime.",
"status": 412,
"code": "precondition_failed",
"request_id": "req_01j7zq3k9x2m4n6p8r0t2v4w6y"
}