Currently, we have two types of discount code campaigns that you can attach to FAM emails: a percentage discount and a flat amount discount. Depending on the type of email, the discount code will be unique/single-use and multi-use.
In this tab, you can set the discount type for the email, the percent or amount off, and the minimum purchase amount for the discount code to apply to:
FAM makes all discount codes for emails automatically in Shopify and you will be able to see the FAM discount code campaigns in the discount section of your Shopify admin page.
In here, you can edit the FAM discount code campaign for parameters such as what products the discount applies to, who is eligible for the discount, or how many time the code can be used: