Hi,
Please check the attribute of Transaction Type that you assigned in Posting Data - Make Basic Setting for Payment process Selection for this Specific Transaction type CP.
Normally you need to configure as below for incoming payment through IHC (Debit memo)
Bank Area | Final | Payer | Credit | CP | 0001 | 0001 | Zyyy (Credit) |
Bank Area | Final | Counterparty | Debit | CP | 0001 | 0001 | Zxxx (Debit) |
I have never used this functionality with Payment notes to determine the External parties, though. If the above is not the roote cause, would you expand the error message and share the details with the error message "Red - Generation of payment items - Offset Item - failed"?
Cheers
Taro