Section I : POS instruction(Front End)
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      2. Section I : POS instruction(Front End)

      Section 1.6: CRM-Stamp

      How to get a free items by using Stamp?

      Set a Stamp for special Item in the Backend

      How to use the free stamp？

      1. Assign the customer 

      2. Click the "Price"

      3. Click "Apply Stamp Exchange"

      4. The amount will change to "0"