Thank you for joining the thread, @ARKadmin.

The feature to turn a credit into a credit memo is currently unavailable in QuickBooks.

However, you can follow the workaround given above which will allow you to record an overpayment. I want to let you know that we're taking note of your feedback and suggestions to improve the experience we're providing.

In case you need tips and related articles in the future, visit our QuickBooks Community help website for reference: QBDT Self-help.

Fill me in if you have any other questions managing your credit memo. I'll be around if you need any help.