Hi @Teodor
I’ve encountered the same problem as described in this topic.
As you suggested - the error 406 is only returned when trying to fetch the schema.
When I’ve tried running the action in the browser, it completes successfully.
Is this a known bug/error with the ‘Define Scheme’ function of the API Data Source connector?
Any idea if a fix is possible?
I’ve attached an image below of the 406 error reported by the Define / Fetch schema button.