Delete a Credit Memo throws error "Deleting [Voiding] a Credit Memo that has been refunded is not permitted."

1. Edit the Credit Memo

2. Navigate to Apply tab > unapply the Credit Memo from the Refund

3. Click Save.

4. Edit the Credit Memo again.

5. Mouse over  Actions > select Delete

Or Click Void button if user wants to void it. If Void button is missing, please navigate to Setup > Accounting > Accounting Preferences > General Tab > Void Transactions Using Reversing Journals = F