E17005 — ReceiveRuleExists

A receive rule for this entry already exists on the mailbox. Delete the existing rule first to change its action.

The request conflicts with the current state of the resource, including idempotency conflicts (E01004, E01005). Fetch the resource's current state and reconcile before retrying. For idempotency conflicts, reuse the original request body with the original key, or mint a new key for a genuinely new request.