Possible values do not match

What causes this issue?

The possible values for groups, intervals, or single values do
not match.
For example, it is not possible for the
original group value to be single and with the
new group value no groups are allowed.

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

System Response

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.