Payment Process Request setup for minimum payment amount for a supplier.

Summary:

Client has a system wherein they refund to their customers.
After the Payment Process Request is created for the refunds, it also includes several customers which has payments of less than $25 and the client would not like to include those customer for the payments.
Is there any way to restrict customers having payments less than $25 to not be selected in the PPR?
Only way right now is to delete the customers one by one, however, as there are several customers (~8000), it is not possible to delete these many manually.

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