Build-Your-Own Bundles

A build-your-own bundle lets customers pick a set number of products from a curated group and get a discount for buying them together. The customer controls the mix. The brand controls the rules: how many items, which products qualify, and how big the discount is. The question shifts from “should I buy?” to “which ones should I pick?”

How it works

Custom bundles combine three motivations. Customers like choosing for themselves. A discount for buying more feels like a reward. And once a bundle is partly filled, people want to finish it. A “pick 3, save 20%” offer gives shopping a clear goal and a visible payoff.

How to do it

1. Set the bundle rules: items per bundle, eligible products, and the discount type. Examples: “Pick any 3, get 20% off,” “Build a set of 5 for $99,” or tiers (10% for 2, 15% for 3, 20% for 4+).
2. Check that the discount still leaves margin above your single-unit economics.
3. Pick 15 to 30 eligible products with similar prices, related uses, and healthy margins. Include a few best sellers to draw traffic and some lesser-known products that benefit from it.
4. Build a bundle page that shows each product with image, name, and price, plus a running total and savings that update as items are added.
5. Add a progress line, for example “2 of 3 selected. Add one more to save $15.” On mobile, keep selections and savings in a sticky bottom bar.
6. Link to the bundle from the homepage, navigation, product pages, and email.
7. Track which products are picked together, which are never picked, and where people leave the builder. Adjust the product set and pricing from that data.

What to measure

• Bundle conversion rate: bundle purchases divided by bundle page visitors.
• AOV lift: average order value of bundle orders compared with non-bundle orders.
• Bundle completion rate: completed bundles divided by bundles started.

Best practices

• Show the savings as it grows (“You are saving $27”) rather than a static “up to 20% off.”
• Offer prefilled best-selling combinations that customers can edit. This helps people who do not want to choose from scratch.
• Mark popular items with a “most popular” badge to guide unsure shoppers.
• Offer a “build a gift set” version with gift packaging.

Common pitfalls

• A builder that takes too many clicks. Keep each selection to one tap.
• A discount too small to matter. “Save 5% on 3” rarely changes behavior.
• Mixing very different price points. If $10 and $80 items sit in the same bundle, the deal is hard to judge. Keep eligible products in a narrow price range.