Price summary with indicator &1: Different gross groups

What causes this issue?

You have set the <DS:DE.PREISZUS>price summary indicator</> &V1& in
schema steps &v2& and &v3&. However, if you want to set this indicator,
the <DS:DE.GROSSGROUP>gross groups</> in the schema steps have to be the
same. This is not the case.

System Response

You cannot save the schema
You cannot release the schema for billing

How to fix this error?

Delete the price summary indicator or make sure that the steps have
matching gross groups.

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.