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# How can I integrate the coupons in my POS through barcodes?

### Basic validation methods:

  
  
Here you can find an overview of our basic validation methods.  
[https://www.coupontools.com/en/coupon-validation](https://www.coupontools.com/en/coupon-validation)  
  
Basic validation methods are easy to use for small businesses and they don't require an advanced POS setup with barcodes.  
  

### A) Generate unique barcodes in your POS platform and let Coupontools display a unique barcode on each coupon.

  
  
How does it work? The existing POS system generates a batch of for example 100 000 unique barcodes. You are able to import those barcode values for a coupon and setup your preferred barcode format. Our platform will random use those barcodes and display a unique barcode on each coupon. The POS recognizes if the barcode is unique and valid.  
  
Available barcode formats: [https://www.coupontools.com/en/mobile-coupon-barcode-formats](https://www.coupontools.com/en/mobile-coupon-barcode-formats)  
  

### B) Setup a fixed barcode value

  
  
If your POS platform cannot create unique barcode values you can setup a fixed barcode value in the coupon. Coupontools will display the same barcode for every user.  
Advantage: it's scannable with the POS barcode scanner  
Disadvantage: because every coupon has a identical barcode you cannot prevent fraud and cannot track back the barcode to the user.  
  

### C) Integrate your POS platform with our API.

  
  
We offer and API + webhooks to create a seamless integration with any internet enabled POS platform. The POS system needs to create an integration with our API. There might be extra costs involved.