Follow these steps to resolve the issue: 
  1. Contact the patron and determine if both charges were intentional or if one was a mistake (the charge listed in the error message and the charge in the right hand side of the sales screen).
  2. If the duplicate charge is in error: Complete the sales order with the correct payment, then go into your credit card processor and refund the other charge.
  3. If both charges are valid: First, complete the unresolved order.  Then, create a new order in Daily or Advance Sales with the other item that the patron was attempting to purchase.  Use an other payment method to complete the order, since we do not want to charge the card again.