SAP Message CACSAPPL527 - Implementing class &1 for step &2 contains errors

Diagnosis
In an attempt to compare the commission application, the step "&v1&" issupposed to be executed. The implementing class defined for this step isclass &v2&.
Either class &v2& does not exist or it contains errors.

System Response
Processing is terminated.

Procedure

Procedure for System Administration
This is an error in the SAP standard delivery. Contact technical supportfor an analysis of the problem.