Loyalty card validation via POS

This article explains how to validate a loyalty card via a Point of Sales (POS) system. The process involves finding users in the loyalty program and adding a stamp to their loyalty card using Coupontools API.

Step 1: Find the user

To validate a loyalty card in your POS, you need to use the Get All Stats API to research for a user by its name and retrieve their loyalty card.




Step 2: Adding a stamp to the loyalty card

Once you have identified the user, you can add a stamp to their loyalty card. Use the Add Stamp API to assign a stamp to the identified loyalty card.

Updated on: 12/02/2025