If your subscription includes products with interchangeable options, you can set this up in the Variants section as follows :
- Variant Name : This is your internal variant name, which will be included in your SKU e.g "T-Shirt Size"
- Label : This is the the title text shown to the customer e.g "Select T-Shirt Size"
- Options : Here you can add each different variant option for a customer to choose between eg. Medium T-Shirt Size
Note : You must add at least 2 x options for a customer to choose from when creating a Variant