Depreciation key has fewer depreciation types than previously valid key

What causes this issue?

You tried to change the depreciation key manually from &V1& to &V2&. The
new depreciation key does not contain any calculation methods for the
depreciation type "&V3&".
It is not possible to convert to a key that has fewer depreciation types
than the previous key.

System Response

The system rejects the change to the asset.

How to fix this error?

Enter a different depreciation key that possesses the depreciation type
"&V3&". If applicable, use a percentage rate of 0.00% so that no values
are calculated for this depreciation type.

Procedure for System Administrators

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.