Escheat one time suppliers

Summary:

Is there a process to escheat one time suppliers?

Content (required):

We currently use a process where we void the payment, update the supplier with third party payment relationship being the government agency, update the invoice installment with the third party payment details and then create payment to the government agency. However, it looks like this can not be done for one time payments as there is no supplier record to go and add the third party payment relationship. Is this correct? And if so is there a good way to escheat these types of invoices/payments?

Version (include the version you are using, if applicable):