1. First, you need to find the Sunjoy coupon code you are interested in on this page and click Get Code on the right side of the title.
2. You'll observe the offer code being displayed and automatically copied to your clipboard after a single click.
3. You'll then have to return to the checkout page of sunjoyshop.com, find the designated box for the promo code, and enter the discount code you had previously copied.
4. Ultimately, by clicking 'Apply Code', you will be able to see the discount amount on your existing order.