Sale Promotion Coupon for POS
Create Coupon Program
Go to Sale --> Products Menu -> Coupon Programs
Click on Generate Coupon button and create number of coupon as per your need.
Apply coupon in POS
Select a product which is greater than coupon program minimum purchase amount.
Any Coupon which is created in Sale Module can be used in Odoo POS too.
Review Coupon Usage
Review coupon by checking its state.