CO area &1 with currency type &2 allows different company code currency

What causes this issue?

Controlling area &V1& with currency type 10 allows different company
code currency. For currency type 10 the different company code currency
indicator should be set as empty.

System Response

This is a database mismatch.

How to fix this error?

Contact SAP.

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.