1. Open the Scanner App: https://app.boomerangme.cards/scanner-app or https://yourdomain/scanner-app

2. Sign in with your/manager’s phone number or with an email address and password

3. Click on “Scan” and point the camera to the card's barcode 

4. Click on “+” – add any number of stamps you would like to accrue, click on “Add stamps” and confirm

5. You can also write off available rewards, just switch from “Add” to “Remove”