...
The variants will be automatically combined into a single order line item for the product.
Notes:
Additional products are allowed on the order. Only the products with the Bundle Variants checkbox will be combined.
The product may be recurring. The variants will be fulfilled on each subsequent billing. Variants may be edited manually on the Purchase Details page.
The bundled variants must all be of the same base product.
The combined order product will have a quantity of 1. You must control the quantity of each variant. For example, if the product is a 5-pack of t-shirts, it is the responsibility of the page to validate that variant quantities add up to 5. The order/import and upsale/import API do no quantity validation.
This is available with a direct API integration only. It does not work with Konnektive form code or in manual order entry.
Variant IDs are available in the campaign/query API response. Details here.