3257698 - Error message "Empty key predicate not allowed" shows up when posting an API using Postman

You want to post an API using Postman. However, after you send the request, the error message "Empty key predicate not allowed" shows up.

SAP S/4HANA Cloud

There is an extra space (" ") at the end of the request URL.

Delete the extra space.

Postman, API, 400 Bad Request, empty key predicate, extra space , KBA , OPU-API-RT , Runtime , Problem