Message type: E = Error
Message class:  67_LOAN_PAY - Loans Management: Messages for Payments 
Message number: 153
Message text: Payment method & not defined for individual payment: see long text
Incorrect payment method selection:
A payment method with individual payment must be assigned to the flow,
as the indicator for payments to third parties is activated on the flow
type.
The system issues an error message and will not allow you to continue with this transaction until the error is resolved.
Choose a suitable payment method. The payment method must be assigned
to the business partner in the current company code. If no such paymnet
method is assigned to the business partner, you will first have to make
this assignment via partner maintenance.
Error message extract from SAP system. Copyright SAP SE.
The SAP error message 67_LOAN_PAY153 indicates that a specific payment method is not defined for an individual payment in the context of loan payments. This error typically arises when trying to process a payment that requires a specific payment method that has not been configured in the system.
Cause: Missing Payment Method Configuration: The payment method you are trying to use for the loan payment is not defined in the system for the specific transaction or document type. Incorrect Payment Method Assignment: The payment method may not be assigned to the relevant company code or may not be valid for the specific payment type. User Role/Authorization Issues: Sometimes, the user may not have the necessary permissions to access or use the defined payment methods.
Solution: Define Payment Method: Go to the SAP transaction code OBPM1 (for payment methods in the company code). Check if the payment method you are trying to use is defined for the relevant company
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