Enter a cost center o r group

What causes this issue?

In cost center planning, you can either go into planning using one cost
center or a whole group of cost centers. However, you cannot go in
using both simultaneously.

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 delete either the cost center or the group, or
Enter a value in one of the fields.

Error message extract from SAP system. Copyright SAP SE.