Answer When Using Postscript Coupons
When using Postscript coupons in your automations, popup messages, or keyword replies be sure to include the coupon merge tag and your shop URL. When both the coupon merge tag and the shop or product link are present, the Postscript-generated discount code will automatically apply at checkout.
Answer When Using Shopify Coupons
When using Shopify coupons in your campaigns or other messages, be sure to include the Discount Link merge tag. When this merge tag is included in your messages, the Shopify-generated discount code will automatically apply at checkout.