conflict

HTTP 409ConflictManagement API

What happened

The change collides with something already there — a name or key that has to be unique, or a state that has moved since you read it.

Re-read the record and reapply the change against what is actually there now.

What you received

{
  "type": "https://docs.sidelineexchange.com/errors/conflict",
  "title": "Conflict",
  "status": 409,
  "detail": "…"
}