ABAA-Unplanned depreciation-This tcode is used when you want to post depreciation more than what the standard depreciation key has posted.
This might be needed in unforseen circumstances. For e.g. you have a car that depreciates $2000 every year for 20 years.
The car met with a minor accident, now the value of the car has to go down more.
You would use ABAA to enter this unplanned depreciation.
A common question that is asked is what is the difference between ABAA and ABMA.
ABAA is for entering additional depreciation i.e. more than what the standard depreciation keys calculated.
ABAA posts in addition to what was posted through AFAB
ABMA is for specifically settingthe amount of depreciation rather than allow the system to automatically determine planned depreciation
Use Manual depreciation keys for Future Use Assets or for assets which have been inactivated temporarily or alternatively for which you do not want the system to calculate depreciation automatically. In all these cases, depreciation can be posted only through user intervention.
If these assets are put back in-service again or you wish that the system post depreciation automatically, you would then need to change the depreciation key assignment in the asset master record.
Note- SAP provides standard transaction types for unplanned depreciation, but you can always create your own transaction type in Asset Accounting
After entering the amount, click on save or you can click on the pencil icon to change values for a specific depreciation area.
once you are done, click on save to make the posting.
and the transaction is posted.