SAP Message AC025 - Investment support is not allowed in depreciation area &

Diagnosis
You have specified a depreciation area in which investment support isto be managed.
This area is, however, not defined for this purpose. In particular theinvestment indicator shows that investment support cannot be posted tothis area.

System Response
Further processing is cancelled until this error is corrected.

Procedure
Enter a different area or change the definition of this area.