> For the complete documentation index, see [llms.txt](https://docs.magecomp.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.magecomp.com/magento-2-spin-and-win/avail-coupon.md).

# Avail Coupon

After receiving the coupon via email, customers can use it to avail discounts at the time of checkout. 

It will show an error in the following situation:

* If the coupon is used once, the extension will not allow customers to reuse the coupon.
* If the customer enters an incorrect coupon code, it will show an error message. 
* Any other issues with the coupon code application.

**Checkout Page**

<figure><img src="/files/CmvogT0RjOJvQsYe2RGp" alt=""><figcaption></figcaption></figure>

**Shopping Cart Page (Logged-in Customers)**

<figure><img src="/files/WG05tnKucVKOVSlWaZ57" alt=""><figcaption></figcaption></figure>