read_only_destination

That field can't be written · HTTP 409

What causes this

The destination sets this field itself (its id, version, or timestamps), so a flow cannot send a value into it.

How to fix it

Leave the field unwired. It can still be a source on the other side.

What the response looks like

{
  "error": {
    "code": "read_only_destination",
    "status": 409,
    "message": "…",
    "hint": "…",
    "request_id": "req_…",
    "docs_url": "https://cloud.ngentix.ai/docs/errors/read_only_destination"
  }
}

Quote the request_id if you contact support — it identifies your exact request in our logs.