SAP Note 20029 - Dep. below zero...; Dep. in acquis. year incorrect. .

Symptom

• The system calculates depreciation below zero, although this is not allowed according to the depreciation key nor by the global specifications at company code level.

• The depreciation in the year of acquisition becomes incorrect when there are several acquisitions with different asset value dates. In general, the depreciation is too low. In the depreciation trace in the asset value display, you see that depreciation is not calculated on transactions, but on the total base value.
  

Cause and prerequisites

When the asset class was created, the option for allowing negative APC was selected. This indicator is duplicated in the asset, and is responsible for the calculation of depreciation below zero.
Changing the asset class does not affect the assets that have already been created.

Solution
Using ABAP, set the field ANLB-XNEGA for the affected areas back to its initial value. In addition, you have to switch off the indicator in the asset class for allowing negative APC.

Key words: negative net book value.