Depreciation area &: Special depreciation start date & cancelled

What causes this issue?

No special depreciation was calculated in depreciation area &V1&. This
may be because of a change to the depreciation key.

System Response

The System cancels the special depreciation start date &V2&.

How to fix this error?

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.