ResourcesAdd-ons
Overview
Create checkout add-ons and manage the products, courses, and bookings that offer them.
Add-ons are optional checkout items that can be assigned to products, courses, and bookings.
New add-ons are always created as drafts and can initially have no variants. Create exactly one published, fixed-price, single-payment variant through the product variant endpoints, then publish the add-on by setting is_draft to false.
Parent-product and product-add-on replacement endpoints accept complete, ordered ID arrays. Every referenced resource must belong to the authenticated store, and subscription products cannot participate in add-on relationships.