Add-ons and variants
Add-ons and variants help customers tailor the purchase before they pay.
Use cases
- add a workbook to a course purchase
- choose a license or seat variant
- add priority support to a service package
- choose event ticket tiers
- bundle a template pack with a core product
Checkout behavior
Add-ons should update the visible total before payment. The completed session should carry the selected line items so invoices, integrations, and automations know exactly what the customer bought.
Code path
The embed code does not change for add-ons:
const result = await plandalf.present("course-offer");Inspect the completed session to read selected items:
if (result.status === "complete") {
console.log(result.session?.line_items);
}