Cash App customers can link and view coupons for select Square merchants directly from Cash App. Once a customer receives an email or SMS from a Square Seller with a coupon included, they can follow the deep link to connect their Square Buyer Account directly to Cash App. Once there, the customer will be able to view all available coupons on a Merchant Profile in app. Square Coupons in Cash App is being rolled out in stages and is not yet available everywhere.