Processing Debit Card Transactions at POS

ProtoBase users only.

Use the following guidelines to process debit cards at POS.  These guidelines include the actions of the clerk and the customer. The customer's actions occur on a device called a "combo device" which has a keypad and a mag-stripe reader for swiping the card.  Some combo devices also have a signature pad for electronic signature capture.

Before you begin, note the following restrictions:

Processing Debit Card Transactions at POS

  1. As the clerk rings up the items, the customer can begin interacting with the combo device (swiping card, entering pin number, etc., as requested by the combo device)

  2. When the clerk totals the transaction, the system queries the combo device for tender information.  

  1. The customer is then prompted to enter a cash back amount. The amount (if any) is limited by the option "Maximum amount cash back on debit card."  

  2. The combo device displays the transaction total (which includes the transaction total plus cash back) for the customer to review.

  3. The customer approves or rejects the total.

  4. If the customer accepts the total, POS passes the transaction information to ProtoBase for payment processing.

  5. If the customer rejects the total, POS returns control to the clerk, who can adjust the amount (i.e. if the sale was rung incorrectly), choose another form of tender, or void the entire transaction.

  1. If the customer approved the total, ProtoBase approves or declines the transaction.