No corresponding setting for BSEG summarization defined

What causes this issue?

No corresponding setting for BSEG summarization defined

System Response

You have defined a summarization rule for field &V1& in CO-PA and table
ACDOCA but no corresponding summarization rule for field &V2& in table
BSEG was found. Table ACDOCA cannot be more summarized than table BSEG.
This summarization rule will not affect table ACDOCA until a
corresponding setting is made for table BSEG.

How to fix this error?

If your intention is to summarize CO-PA only, nothing further needs to
be done. However if you want to summarize table ACDOCA, you have to
define a correspondig summarization rule for field &V2& in table BSEG
using transaction <DS:TRAN.OBCYX>OBCYX</>.

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.