Marketing and Promotion Opportunities Retailer strategies for marketing and promotion are open to countless opportunities when factoring in the use of QR codes. QR code technology has helped the retail industry build a sustainable bridge to the expanding mobile commerce industry by linking consumers to information, goods, and services and as a transmission medium for sales transactions. QR codes offer retailers instant analytical feedback from each scan, providing insight into the needs and interests of possible consumers. Another cost-saving feature for advertising with QR codes is that linked information embedded in the code can easily be updated while foregoing the use of extra time and effort spent generating and reprinting new promotional materials.