If you want to create hundreds or thousands of unique coupons, then you probably don't want to do that by hand. You'll want a tool that will let you create a coupon template and use that template to create the unique coupons. That's exactly what WooCommerce Smart Coupons does.
You'll need the WooCommerce Smart Coupons plugin, available at WooThemes.com, installed and activated on your site.
Smart Coupons is primarily meant for bulk coupon generation, so we'll be going straight to that page. Let's take a look at the following steps:
From the WordPress admin, go to WooCommerce | Smart Coupon.
Enter the number of coupons you want to create in the Number of Coupons to Generate field.
Enter all of the settings you would for a regular coupon; for example, Discount Type, Coupon Amount, and Usage limit per coupon.
There are two settings at the bottom of the screen that apply to generating coupons—Prefix for Coupon Code and...