data_connector_invalid_response
HTTP status: 422 (Unprocessable)
Title: Data connector response is not valid
Cause
Your connector answered, but an account card, a search answer or a view page does not follow lelemon-connector/v1. The detail lists the failing paths with the rule each breaks, never the values. The check endpoint reads the manifest only, so it can pass while a card fails.
How to fix it
Fix the paths the detail lists in what your connector serves. To test a card before serving it, send it to the validate endpoint.
Call the endpoint named below first, then send the request again.
Endpoint: POST /v2/data-connectors/format/validate
Every error carries requestId and the Request-Id header. Send it when you write to support.