5003: attachment source was refused by the secure URL policy
attachment source was refused by the secure URL policy
attachment source was refused by the secure URL policy. This is an HTTP 422: the request parsed but a value is not acceptable.
Troubleshooting
Section titled “Troubleshooting”- Check the file against the documented size and format limits for this field.
- For a source URL, confirm it is reachable, returns the declared content type, and is not behind auth.