Group & is not assigned to the chart of accounts &

What causes this issue?

You have entered controlling area &V3& and group &V1&. This controlling
area is assigned to the chart of accounts &V2&. In hierarchy
maintenance, the cost element group has been assigned to the chart of
accounts &V4&. You cannot therefore use it together with the chart of
accounts &V2&.

System Response

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

How to fix this error?

Please correct your entry.

Error message extract from SAP system. Copyright SAP SE.