| Only partner banks without bank groups found

What causes this issue?

In the payment method definition (payment method in company code) you
marked the field <DS:DZ.XOPTB_042Z.1000>Optimize by bank group</>
Selection could not be optimized because only partner banks without
without bank groups were found.


&sys_admin&
INCLUDE FICA_NA_FEHLERSITUATION OBJECT DOKU ID TX
If you do not want bank selection optimization for this payment method,
reset the indicator <ls>Optimize by bank group</>.
INCLUDE FICA_NA_F5_1 OBJECT DOKU ID TX
If the bank group is missing from the bank master data, add it to this
data. <DS:TRAN.FI12>Change House Banks/Bank Accounts</>
Check your business partner and contract account master records as to
whether you specified the required banks.

Error message extract from SAP system. Copyright SAP SE.