With Liquid Barcodes APP API you can use scan@store as method for redeeming coupons. This means that you have unique barcodes in a store that closes the loop between the consumer (e.g. for single-use offers) and the store where this offer is redeemed in. SMS verification can be sent to the merchant at redemption.

This is a low barrier solution for closing the marketing loop in-store as an alternative to POS integration. No IT-project or integrations are required. Coupons are used by scanning the store specific code with the consumer app. It is fast and easy for both the retailer and for the consumer.