Hm ok. Let’s isolate a few things:

  • Allow your endpoint to run without authentication for now, run it, and see if it returns anything. If it does, then you may need to check that private key in your App Connector settings.
  • I don’t know if this changes anything, but since both of your calls in the App Connector are set to API key, the Client ID and Client Secret don’t apply (only the Private key will), so you can try removing those client values in case there’s some kind of conflict happening there.
  • Even though it’s working in Postman, check the server logs of the app sending the data to see if it’s actually sending anything. If not, something is missing from your search or there’s an authentication issue. If yes, check the server logs of the app receiving the data to see if you spot anything interesting there.
  • I assume the Log record is created and the “Source” field is saving a value so we know the Create action is not the issue?
  • Is there still a Site record in your database? Are there values in the fields? Silly question, but have to ask.