Bummer - a check was returned or a debit card payment wasn't good.  It's easy to correct your accounting records.  Here is how to handle that situation:

 

1. Go to the Customer's Invoicing & Payments tab and delete the payment by clicking on the Actions button and then 'Delete'.

  

 

2. After deleting the payment, click on 'Add Item'.  Adjust the date if needed, change the Type to 'Fee', enter the description and amount and click 'Save'.  This will add the fee to the customer's invoice.