Okay, so we recently ran a client copy from a productive system to quality. The copy took over 21 hours, and when it was complete, an error was showing. FINB_TR_CC_EXIT_TARGET was listed under the Table Name field, but obviously that was not a table. Actually it is a function module, and it was being called at the time of the client copy error.
This ended up being a fairly easy fix. Since it is apparently common for client copies to fail during the post-processing step, SAP released note 1235955. If you follow the note it will walk you through completing the process. Worked great for us.
Hope this helps...
