I matched a payment with the wrong invoice Customer how do i fix this?

Hi acengraving,

Thanks for posting in the Community! We can unmatch the payment made to the wrong invoice. Let me guide you how to do this. 

1. Go to Banking tab and then select the Categorised tab.
2. Find the transaction you want to unmatch.
3. Select the blue transaction link in the Added or Matched column to see the matched transaction.
4. Select Undo from the Action column.
    

The transaction you undo will go back to the For Review tab and the invoice you've matched to this payment will be reopened. 

You can also check this article on how to unmatch downloaded bank transactions or move them to another account. 

Feel free to drop a comment below if you have any other questions. Have a great day!