> ## Documentation Index > Fetch the complete documentation index at: https://www.referly.so/docs/llms.txt > Use this file to discover all available pages before exploring further. # Create a coupon > Create a coupon in Referly: choose your source, set a percentage or flat-rate discount, pick a duration, add redemption limits, and Referly builds it on Stripe, Shopify, WooCommerce, or Polar for you. Creating a coupon in Referly builds the discount for you on your connected platform, so it works the moment a customer enters the code at checkout. You choose the discount and the rules; Referly handles the rest. ## Before you start Connect the platform your customers pay on first — see [Connect a coupon source](/docs/help-center/engage/coupons/connect-a-source). If you already made the coupon on that platform, [sync it](/docs/help-center/engage/coupons/sync) instead of building a new one. ## Start a new coupon Open your campaign, select **Coupons** in the left sidebar, then select **Create Coupon** in the top right. ### Choose the source At the top, pick where the coupon should be created — **Stripe**, **Shopify**, **WooCommerce**, **Polar**, or the **API**. This is the platform Referly will build the coupon on. If the one you want isn't connected yet, you'll be prompted to [connect it](/docs/help-center/engage/coupons/connect-a-source) first. ### Name the coupon Give the coupon a name so you can recognise it later in your library — for example "Summer 20%" or "Creator deal". This is an internal label; it's not the code customers type. That comes next as a [promotional code](/docs/help-center/engage/coupons/promotional-codes). ### Set the discount Choose how much money the coupon takes off: * **Percentage** — a percent off the order, like 20%. Enter the number in the **Percentage Off** field. * **Flat Rate** — a fixed amount off, like \$10. Enter the number in the **Amount Off** field, and pick the currency. ### Choose how long it lasts For subscription products, the duration decides how many billing cycles the discount applies to: * **Forever** — the discount applies for the life of the subscription. * **One-time** — the discount applies to the first payment only. * **A set number of months** — the discount repeats for the number of months you enter, then stops. For one-off purchases, the discount simply applies to that order. ### Add redemption limits (optional) Under **Redemption Limits** you can cap how widely the coupon is used: * **Maximum redemptions** — the total number of times the coupon can be used across everyone. Leave it as **Unlimited** for no cap. * **Expiry date** — a date after which the coupon stops working. These apply to the coupon as a whole. You can also set finer limits on individual codes and add product or order rules — see [Restrict a code](/docs/help-center/engage/coupons/restrictions). ### Create it Select **Create** at the bottom. Referly builds the coupon on your connected platform and adds it to your library, ready to assign to affiliates. ## What to do next * Add the [promotional code](/docs/help-center/engage/coupons/promotional-codes) customers will type, or tie a code to a specific affiliate. * [Auto-generate a unique code](/docs/help-center/engage/coupons/auto-generated-codes) for every affiliate from this coupon. * Add [restrictions](/docs/help-center/engage/coupons/restrictions) like a minimum order or first-time-customer rule. ## Related Add the codes customers type at checkout. Give every affiliate their own unique code. Limit a code to products, a minimum order, or first-time buyers. Link the platform Referly builds the coupon on.