If you've created a customer return which needs changing, here's how to do it.
Need to delete a return? See Deleting customer returns.
To edit a customer return
From the Sales menu, choose Customer returns.
Locate the return to be edited using one or more of these methods:
From the Customer list, choose the customer whose returns you want to see.
In the Search field, enter all or part of a customer's name or the return amount. As you type, matching returns are shown.
Click a column heading to sort the displayed list by that column.
Click the Invoice no. for the return you want to edit.
Make your changes to the return.
When you're done, click Save.