Diagnosis
Source and target company codes are identical. However, you did notchoose the "Post directly" option.

System Response
Error message.

Procedure
Normally it does not make sense for the source and target company codesto be identical. The only exception is if you want to use the mappingtable in order to post from a depreciation area of the company code tothe same depreciation area of the same company code directly to thegeneral ledger. If this is the case, leave the target data completelyblank, but select the "Post directly" indicator.