Automated Receipt Handling for Credits - how system will identify which receipt has to open

How does the system determine which receipt to reopen when a credit memo is generated from a return order, especially if multiple receipts—whether using the same or different payment methods like cash or credit card—are associated with the original sales order.

whether the below statement mentioned in the point-3 is right can i get a doc id for the same,

Oracle Receivables doesn't automatically choose a receipt based on payment method (e.g., cash vs. credit card). Instead, it follows a logical and transactional sequence based on how receipts were applied and their current status:

1. Receipts Applied to Invoice