Add-on purchases are ideal for purchases that you can add to specific products and sub-product offerings.
For example, if you'd like to ensure that a mandatory fee is paid by a person and set a trigger for that fee to be paid only once per year or once per order, add-ons are ideal.
Using the example above, to create a mandatory annual membership fee, here's how:
- Go to the Options page under the Storefront tab
- Scroll down to Add-ons
- Enter "Annual Membership" under Add-On Name
- Enter the amount
- Select the Trigger , charged once per person, per year
- Below the trigger dropdown, you'll see all your products and sub-product offerings. You'll want to determine which of the sub-product offerings you'll want this Add-on to apply to.