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Use this when you want replacement parts or add-on items to be purchased only together with a specific matching main product — for example, requiring that replacement filters can only be bundled with the compatible water purifier.
The following behavior applies based on the cart contents:
Eligible items only (one or more) → Allowed (eligible items can always be bundled together)
Eligible items + selected items (partner items) → Allowed
Eligible items + any other product → Not allowed
Selected items (partner items) only, or + any other product → Allowed (partner items are not restricted)
Field | Value |
|---|---|
① Title | Enter any title |
② Limit details > Bundle limit level | Selected items |
③ Eligible items | Set the products you want to restrict (e.g. replacement filters) |
④ Items that can be bundled | Set the products you want to allow as bundle partners (e.g. the compatible main product) |
⑥ Product message | Enter any message |
⑦ Alert message > Display timing | Cart updated and checkout |
⑦ Alert message > Message | Enter any message |
When “Selected items” is selected, ③ Eligible items cannot target “All items.” Choose a collection, products, or a product tag instead.
Setting Bundle limit level to “Selected items” means eligible items can only be bundled with the partner items specified in ④ Items that can be bundled.
Eligible items can always be bundled together. Only the eligible-item side is restricted — partner items are not restricted and can be freely combined with any other product.
If you set the same item as both an eligible item and a partner item, a warning is shown. Overlapping items are treated as eligible items, not as bundle partners.
If there are specific eligible items you want to exempt from the restriction, use ⑤ Excluded items.