my client posted unplanted tax dep thourgh T.code:ABMA only for tax dep(15) to asset, but he posted twice for the same asset by useing AMBA, now he want reduce that amount, is it possible reduce that amount with out effecting the book dep 01.
Yes it is very much ossible to reduce the depreciation amount posted.
What i would try to do is
1. Reverse one of the document posted through t-code ABMA
2 create another transaction type and pass an offsetting entrylimiting to the depreciation area.
for this please check
Negative/posetive values allowed for that depreciation area.
hope this solves yourissue