Reconcile a refund from Cash management to a AR credit memo

 Hello,

My customer whishes to run the following script :

1- create an invoice and send it to the customer

2- book a receipt and apply it to the invoice

3- realise there is an error and issue a credit memo, send it to the customer with the refund

4- book the refund in Cash management when the bank statement is loaded and reconcile this bank statement line with the credit memo

How can I make this last step in Oracle ?

Thank you for your help

Gaelle