HTTP/4xx (Client Error)
415 Unsupported Media Type
The origin server is refusing to service the request because the payload is in a format not supported by this method on the target resource.
❓ Why does this happen?
Missing or incorrect Content-Type header (e.g. sending text/plain when application/json is required).
✅ How to fix it
Set the correct Content-Type request header matching the format accepted by the server.