Diagnosis
An error occurred when table T018C was being changed. The program triedto fill the new "Clearing Account for Credit Posting" field with thecontent of the "Clearing Account for Target Posting", causing theerror.

Procedure
Run the program again before going live. You can run it as often as youwant, even after going live. However, you should run it before thepayment advices from cash concentration are converted into postings forthe first time.