I marked an invoice as paid accidentally how do I change back to unpaid? I can’t find an option to do it

Hi cr-elec-yahoo-co, thanks for joining us on the Community - you can do this by deleting the invoice payment - to locate the payment, either type the amount in the search field by selecting the magnifying glass in the top right of your screen, or navigate to sales > invoices > click on the invoice to open > select 1 payment made > select date (this will open the invoice payment) > more > delete. 🙂