Derived depreciation area vs real depreciation area?


Derived depreciation area does not have its own value rather it derives its value from other real depreciation areas.

 

Below shown the configuration needed for derived depreciation area.

Depreciation area 1 is real depreciation area assigned to ledger 0L.

Depreciation area 2 is real depreciation area assigned to ledger L1.

Depreciation area 3 is derived depreciation area assigned to ledger L1. Since area 3 does not have its own value rather it derives its value from the difference of values between area 2 & area 1 hence no depreciation key is assigned to area 3.

derived depreciation area configuration

Let’s say asset acquisition value is 2400.

 

When depreciation run (T code: AFAB) is executed, accounting document for depreciation is posted in area 1 (ledger 0L) and area 2 (ledger L1).

Asset is sold after 4 months for 2300. As a result of asset sale transaction, values will be updated in asset sub-module as well as finance module (accounting document will be posted in corresponding ledgers).

derived depreciation area

Consider depreciation area 1.

Accumulated depreciation in 4 months is 200.

Net book value of asset was= 2400-200=2200

But asset is sold for 2300 hence gain on sale of asset is 100.

Asset sub-module and finance module (ledger 0L) both are in sync.

Consider depreciation area 2.

Accumulated depreciation in 4 months is 160.

Net book value of asset was= 2400-160=2240

Asset is sold for 2300 hence gain on sale of asset is 60.

But same accounting document which is posted in ledger 0L gets posted in ledger L1 also. Hence asset sub-module and finance module (ledger L1) are not is sync.

Consider depreciation area 3

No accounting document is posted as of now.

Now period asset posting (T code: ASKB) is executed. As a result, below accounting document gets posted in ledger L1 originating from area 3.

document posted by derived depreciation area
derived depreciation area ASKB

As a result of document originating from derived depreciation area 3, asset module and finance module (ledger L1) comes in sync.

 

 

Summary:

Derived depreciation area derives its value from difference between two real depreciation areas.

No depreciation key is assigned to derived area.

GL indicator of derived depreciation area is 06 (area post APC only).

When periodic asset posting (T code ASKB) is executed at month end then accounting document is posted in corresponding ledger to remove imbalance between asset sub-module and finance module.