Void a Cash Transaction

[justrusticco]

We had a customer want to pay with cash, so we did a cash transaction through the POS. Then they changed their mind to card, so we did the card transaction. How can I go back and void the cash transaction, so my sales reporting isn't messed up?

[VanKalkerFarms]

now that you are past the ability to back up in the sales flow your best option is to do a return.  https://squareup.com/help/us/en/article/6116-process-refunds

it will still show the sale but also show the return.  there is no way to permanently delete any transaction.