From time to time, you will be required to process a credit for a member.  The process for creating a credit invoice is identical to a regular invoice, with one exception.  Once the POS screen is loaded and the member selected, select the green Charge button in the upper left hand corner of the POS screen.  It will turn orange and the label will change to Credit.

Process the sale in the normal fashion using the touch screen interface or the bar code interface.  The only difference on your sales slip, is that the quantities will be negative and the totals at the bottom will be negative as well.  

You can mix and match credits and charges on a single invoice by toggling between the Charge mode and Credit mode.  This could be useful if a member is returning an item and replacing it with another item.

Once the invoice is complete, tender it in the normal fashion.