When the prices in the store change, the price tags must also be updated. With traditional paper price tags, changing the price of one individual product is time consuming and if it is a promotional campaign, it may be more challenging. With ESL Prices changes are implemented automatically, with no manual intervention required on the shop floor. Electronic tags can be changed in batches from the back-end. Moreover, if there is an error, it can be corrected quickly without manual modification, which avoids repeated errors.