Message type: E = Error
Message class:  67_LOAN_PAY - Loans Management: Messages for Payments 
Message number: 151
Message text: Partners who are not main borrowers require a payment method
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The SAP error message 67_LOAN_PAY151 indicates that there is an issue with the payment method configuration for partners who are not designated as the main borrowers in a loan or payment processing scenario. This error typically arises in the context of financial transactions involving loans, where specific payment methods must be assigned to each partner involved in the loan agreement.
Cause: The error occurs when: A partner (co-borrower or guarantor) is involved in a loan transaction but does not have a payment method assigned. The system requires that all partners, except the main borrower, have a defined payment method to process payments correctly.
Solution: To resolve this error, you can follow these steps: Check Partner Configuration: Navigate to the loan or payment document in question. Review the partner details to identify which partner is missing a payment method. Assign Payment Method: Go to the partner's master data or the relevant transaction where the partner is defined. Assign a valid payment method to
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