Activation requires at least EA-PS Rel. 604 and SAP_PPL Rel. 604

What causes this issue?

You want to activate the 'PSM_GEN_BUDPER_1' business function. Release
604 is the lowest prerequisite release for this business function in
SAP_APPL and in EA-PS.

System Response

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

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.