1. Initially, you have to identify the opi discount code you're keen on from this page and click on Get Code, located on the right side of the title.
2. With a single click, the offer code will then be displayed and auto-copied to your clipboard.
3. You'll then need to return to the opi's shopping checkout page, where you'll find the promotional code box and paste the coupon code you just copied into it.
4. The last step is for you to click on the apply code, and it will immediately show whether the offer is applied to the order.