Selected document category is not supported with CPE

What causes this issue?

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

System Response

The following document category is currently not supported for use with
the commodity pricing engine (CPE): &V1&

How to fix this error?

Check if the entered document category is correct.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.