How to collect the coupon codes during signup on the V2 checkout pages?

Problem Statement

You want to know how to collect the coupon codes during signup on the v2 checkout pages.

Solution

You can collect coupon codes on the checkout page by enabling Discount Code option under Settings >> Checkout & Self-Serve Portal (under Customer-facing essentials) >> Field Configurations >> Discount.

Once you check this option, the Discount Code field will show up on the checkout pages.