Unable to Apply Receivables Prepayment to Invoice via Auto Invoice - Following Documented Process

Dear all,

Problem Description:

I am encountering an issue while attempting to apply a prepayment to a sales invoice in Receivables, following the steps outlined in this Oracle documentation: https://docs.oracle.com/en/cloud/saas/financials/25a/fairp/how-you-create-and-apply-prepayments-to-transactions.html#u30251165

Steps to Reproduce:

Created a prepayment transaction type and source.
Successfully imported the prepayment using Auto Invoice.
Prepared the Auto Invoice import Excel sheet to apply the prepayment to a sales invoice. This included:
Adding the sales invoice details.
Adding the prepayment in a negative amount on a separate line.
Uploaded the Excel sheet and ran the AutoInvoice import process.