06-26-2025 06:43 AM
I tried to create business policies for my Sandbox test user by sending requests via the API, but I consistently receive 400 errors. I have confirmed that the OAuth token I’m using includes the required scopes for the calls.
I also tried using the eBay API Explorer, but the same error occurred. So I believe the issue is not with my code, but rather with missing permissions for the Sandbox user.
How can I grant the necessary permissions to the Sandbox test user in order to use these endpoints?
If the cause is something else, what could be the actual reason?