SAP Note 26891 - Depreciation not reduced in shortened fiscal year

Symptom:

1. In the shortened fiscal year, a complete annual depreciation is calculated (and consequently also posted in the last period) even though the depreciation should be reduced proportionally.

2. In the shortened fiscal year, the depreciation is reduced proportionally although it should also be calculated completely in the shortened fiscal year.

Cause and prerequisites

In Customizing for the asset company codes, you have to determine for each area and depreciation type whether or not the depreciation should be reduced in a shortened fiscal year.
If you do not make an entry, the depreciation is not reduced!
Furthermore, you can determine for individual depreciation calculation keys that the depreciation for this key should not be reduced contrary to the general specification in the company code and depreciation area.

Solution
Maintain the specifications correspondingly in Customizing.
You can access the general specifications for each posting area and depreciation area using Transaction OAB1 and choosing "Company code > Shortened fisc. year" from the menu.
You can maintain the depreciation calculation keys using Transaction OA23.
For further details on how to process a shortened fiscal year, refer to the chapter "Fiscal Years and Periods" in the System Administration Guide.

As of Release 4.6, use Transaction AFAMA for the maintenance of the calculation keys.

Additional key words

AW01, RABUCH00, T093Y, T090-XRAFA