note: I know that one way to do it is creating first the debit memo and then apply it to the original invoice but I want to use the Reverse and Apply memo action.

Hi @rodrigocid34  I think the system will allow us to select the Credit Memo/Debit Memo when we click on the Reverse and Apply Memo action for the OPEN invoice.

Below article might help you. please review.

https://help-2022r1.acumatica.com/(W(2))/Wiki/ShowWiki.aspx?pageid=1da8f906-8674-4a1a-b6a1-b92d573e60e8

Hello,

• Reverse and Apply Action will create a Credit Memo for the full amount of your original invoice and the Credit Memo will be applied to the original invoice. You will need to manually create a replacement Invoice to your customer (or a Debit Memo to replace the original invoice if you prefer).
• Reverse and Apply Action will not create an Invoice or a Debit Memo to replace the original Invoice. 
• Reverse and Apply Action will not create an incremental Debit Memo, such as to increase the amount of the original invoice for forgotten shipping charges or incorrect pricing.
• Reverse and Apply Action will not allow you to choose what type of documents are created during the Reverse and Apply action.

We cannot apply Debit Memos to Invoices - both Debit memo and Invoices increase the customer’s balance and cannot be connected to each other, even if related.  When a Payment arrives, Payment can be applied to an Invoice and the related Debit Memo at the same time.