# Loyalty Provider Use this section to integrate external coupon provider to DealPOS

Go to Developer Menu -> Tab Promotion Coupon Provider then click button Add and fill with your endpoint. ![Loyalty Image](PromotionCouponProvider.png) ## Validate Coupon - [POST loyaltyPointValidateCoupon](https://developer.dealpos.com/webhook/webhook/loyalty-provider/validatecoupon.md): This webhook is triggered when the user inputs a promotional coupon from the SELL page from the external app. This is a synchronous API that requires a response. To developer who wants to use this webhook, you can create prototypes Endpoint URL mockserver from beeceptor. ## Redeem Coupon - [POST RedeemCoupon](https://developer.dealpos.com/webhook/webhook/loyalty-provider/redeemcoupon.md): This webhook will be triggered once the provider has configured the coupon and completed the payment or invoice creation in Sell menu.