Hi team
I would like to understand the functionality behind the “Use Default Payment Method for Installments” option under the Supplier/Payment Tab.
I know that when this toggle is enabled, the default payment method is updated in the supplier invoice or installment plan. However, my question is:
When this toggle is enabled, is there a limitation that restricts payments to the default payment method only?
I have the following scenario:
- The above toggle is enabled for the supplier.
- The supplier’s default payment method is ACH, but CHK is also connected.
- I hve created an invoice so the payment method in installment plan is ACH
- Create the payment proposal and the Payment method % -So my invoice is included to the payment proposal
- But when I try to create the payment order for the payment method CHK,I get below error

I noticed that I can make a payment using CHK if I disable the “Use Default Payment Method for Installments” toggle under the supplier.
Could you explain why the system restricts me from using another payment method (e.g., CHK) that is already connected to the supplier when this toggle is enabled?
thank you
Prabha