Any Three Candles: A Mix-and-Match Bundle With a Set Ladder
How one slot with a quantity of three, repeated per set and capped at five, let customers build their own discount that grows with every set.
A Shopify candle brand runs a pick-any-3 mix-and-match bundle with Discount Prime's Product Bundle: one slot from the Signature Candles collection with quantity 3, 10% off each set, repeated for every complete set up to five per order. A set ladder raises the reward to 15% from the third set. In this scenario, average order grew from one candle to just under three.
At a glance
- Challenge
- Most orders were a single candle, and a buy-3 quantity table could not show a pick-any-3 builder or reward each set of three separately.
- Approach
- One Product Bundle with a single collection slot of quantity 3, repeated for every complete set up to five, with a set ladder from 10% to 15%.
- Discount Prime campaign types used
- Product Bundle
Scenario-based case study: the merchant profile is modeled on patterns across real Discount Prime stores, not a single named customer.
Introduction
Some bundles have a fixed recipe: suit, shirt, shoes. Others do not care what the customer picks, only how many.
Candles are the second kind. A shopper who loves one scent may want three of it. Another wants three different moods for three different rooms. Telling either of them which three to buy is the fastest way to lose the order.
The first instinct in planning was a quantity table. A solutions architect asks a different question:
"Is the thing being rewarded a number of units, or a set the customer builds?"
For a home fragrance brand trying to make three candles the normal order, the answer was a set. This case study designs a mix-and-match bundle with one slot, a quantity of three, and a reward that grows with every extra set.
Merchant Scenario
Consider Ember Lane, a fictional Shopify brand selling hand-poured candles and room sprays direct to consumers.
| Attribute | Detail |
|---|---|
| Industry | Home & Living |
| Platform | Shopify |
| Annual Revenue | $1.6 Million |
| Products | 48 |
| Monthly Orders | 4,200 |
| Average Order Value | $41 |
Most orders were a single candle. The team's goal was simple: make three the new normal.
The Wrong First Draft
The first idea was a Tiered Quantity Discount: buy 3, save 10%. It almost worked.
But quantity discounts count units, and Ember Lane wanted the deal to live on the product page as a visible "pick any 3" offer, with a builder that showed the customer what they had chosen, not a table of tiers.
They also wanted a customer who bought six to get the discount twice, cleanly, as two sets, and a customer who committed to a third set to be rewarded more than the first two.
Business Objectives
| Priority | Objective |
|---|---|
| 1 | Lift the typical order from one candle to three |
| 2 | Let the customer choose any scents, including repeats |
| 3 | Reward every complete set of three, not just the first |
| 4 | Make bigger orders more rewarding without changing the base deal |
| 5 | Stop the retail offer before it prices a wholesale-sized order |
Evaluating the Options
Option 1: Tiered Quantity Discount
Buy 3 candles, save 10%.
Advantages
- Quick to set up.
- Counts units cleanly.
Disadvantages
- Shows as a table of tiers, not a "pick any 3" builder.
- Does not express "two sets of three" as two rewards.
| Factor | Assessment |
|---|---|
| Architecture Score | ★★☆☆☆ |
Option 2: Bundle With Three Quantity-One Slots
Three slots, each from the Signature Candles collection, quantity 1.
Advantages
- Enforces three different picks.
- Works with the same widget.
Disadvantages
- Asks for variety the customer never wanted.
- A shopper with three of one scent does not complete it.
| Factor | Assessment |
|---|---|
| Architecture Score | ★★★☆☆ |
Option 3: One Slot, Quantity Three
A single slot from the Signature Candles collection, quantity 3, repeated per set.
Advantages
- "Any three from this list," any mix, in one rule.
- Repeats per set with a cap.
- A set ladder rewards bigger orders.
Disadvantages
- Cannot require variety.
- Ladder only works for rewards that can grow.
| Factor | Assessment |
|---|---|
| Architecture Score | ★★★★★ |
Comparison Matrix
| Strategy | Customer Chooses Freely | Rewards Each Set | Visible Builder | Growing Reward |
|---|---|---|---|---|
| Tiered Quantity Discount | ✓Yes | No, tiers only | ✕No | Via tiers |
| Three quantity-one slots | Only different scents | ✓Yes | ✓Yes | ✓Yes |
| One slot, quantity 3 | ✓Yes | ✓Yes | ✓Yes | Yes, set ladder |
The Discount Prime Configuration
| Setting | Value |
|---|---|
| Campaign Name | Pick Any 3 Candles |
| Campaign Type | Product Bundle |
| Storefront Title | Pick any 3 |
| Slot 1 | Any 3 from the list · Collection: Signature Candles · Quantity 3 |
| Bundle Discount | 10% off set |
| Apply | Repeat for every complete set |
| Maximum Sets Per Order | 5 |
| Set Ladder | Reward grows with sets · Sets 1 to 2: 10% · Set 3+: 15% |
| Combinations & Overlap | Best deal wins |
| Storefront Display | Both |
| Product Page Layout | Auto (resolved to Frequently bought together row) |
One slot. Quantity three. The whole campaign in a single rule.
Why Product Bundle Fits
A single slot with quantity 3 and a collection as its pool is how Product Bundle expresses "any three from this list." The customer chooses. The set completes when three units from the collection are in the cart, any mix, including three of the same scent.
"Repeat for every complete set" turned six candles into two sets and nine into three, up to the cap. And the set ladder did something no quantity table could: it rewarded the third set more than the first two, without changing the rule for the first two.
How the Set Ladder Works
Sets one and two earned 10%. Set three and beyond earned 15%.
A customer who bought nine candles got three complete sets: the first two at 10%, the third at 15%.
The ladder only exists for reward types where it makes sense. A percentage can grow. "Cheapest item free" cannot, so the builder hides the ladder for it.
Why the Cap Was Five Sets
Maximum Sets Per Order was set to five, which is fifteen candles. Above that, Ember Lane preferred to talk to the customer directly about wholesale rather than run a retail bundle on a case-sized order.
The cap stopped the campaign quietly where the retail story ended.
What the Widget Looked Like
On any Signature candle page, a "Pick any 3" row showed the current candle and two empty picks, each with a dropdown of the collection. A total updated as the customer filled the row.
In the cart, a progress line counted toward the next set:
2 of 3 picked. Add 1 more to save 10%
Customer Journey
- A shopper opens a vanilla candle page and sees the "Pick any 3" row with vanilla already in the first pick.
- They choose two more scents from the dropdowns and add the row to the cart. The set completes at 10% off.
- Another shopper adds two candles. The cart line tells them one more saves 10%.
- A gift buyer adds nine candles and gets three sets, the third at the higher ladder rate.
| Cart | Complete Sets | Result |
|---|---|---|
| 2 candles | 0 | Full price, progress line asks for 1 more |
| 3 candles, any mix | 1 | 10% off the set |
| 3 of the same scent | 1 | 10% off the set, variety not required |
| 6 candles | 2 | 10% off each set |
| 9 candles | 3 | Sets 1 and 2 at 10%, set 3 at 15% |
| 18 candles | 5 (cap) | Five sets rewarded, the remaining 3 at full price |
What This Bundle Cannot Do
A single-slot bundle cannot require variety. Three of the same vanilla candle complete the set just as well as three different scents.
If Ember Lane had wanted "three different scents," they would have needed three slots of quantity one, each from the same collection, and the rule that one unit fills one slot would have done the rest. They decided variety was not worth enforcing. Three was the goal, not the mix.
Metrics That Measure Success
- Candles per order, against the single-candle baseline
- Average order value against the $41 store baseline
- Share of orders that complete at least one set, and at least three
- Estimated profit per order after the set discount and ladder
- How often orders hit the five-set cap, as a signal for wholesale leads
Common Mistakes
- ❌ Building three separate quantity-one slots from the same collection when "any three" was the intent, then wondering why the widget asks for three different picks.
- ❌ Setting "Once per order" on a product people happily buy in multiples, leaving the sixth candle at full price.
- ❌ Forgetting the maximum-sets cap and letting a retail bundle price a wholesale-sized order.
- ❌ Expecting the ladder to work on "Cheapest item free." It only applies to rewards that can grow.
Key Lessons
One slot with a quantity is a different product from three slots with a quantity of one. The first says "any three." The second says "one of each." Picking the right one shaped the whole campaign.
The ladder is what made bigger orders feel worth it, and the cap is what kept them retail.
Conclusion
Not every bundle needs a recipe. When the goal is "more of these, your choice," one slot, one quantity and "Repeat for every complete set" is the entire campaign, and the ladder makes the third set more tempting than the first.
In this scenario, Ember Lane's average order went from one candle to just under three. The customers picked. The campaign counted.
Frequently asked questions
How do I set up a buy any 3 mix-and-match discount on Shopify?
Create one bundle slot with a quantity of 3 and a collection as its pool. In Discount Prime, a Product Bundle with a single slot (Collection: Signature Candles, Quantity 3) completes when any three units from that collection are in the cart, in any mix, including three of the same product. Set the Bundle Discount, for example 10% off set, and a Pick any 3 row appears on product pages.
What is the difference between one slot of quantity 3 and three slots of quantity 1?
One slot of quantity 3 means any three; three slots of quantity 1 means one of each. In a Discount Prime Product Bundle, one unit fills exactly one slot, so three quantity-one slots from the same collection force three different picks, while one quantity-3 slot accepts three of the same product. Choose the single slot when volume matters and variety does not.
Can a bundle discount apply more than once per order?
Yes. Set Apply to Repeat for every complete set, and each full set earns the discount: six items become two sets, nine become three. In Discount Prime you can also set Maximum Sets Per Order, for example 5, so the retail offer stops before it prices a wholesale-sized order. Use Once per order instead when customers rarely buy more than one set.
What is a set ladder in a bundle discount?
A set ladder makes the bundle reward grow with the number of complete sets. In Discount Prime's Product Bundle, Reward grows with sets can give Sets 1 to 2 10% off and Set 3+ 15% off, so a nine-item order gets two sets at 10% and the third at 15%. The ladder only appears for rewards that can grow, so it is hidden for Cheapest item free.
Should I use a quantity discount or a bundle for buy 3 offers?
Use a bundle when you want a visible pick-your-own builder and a reward per set; use a quantity discount when a tier table is enough. A Tiered Quantity Discount counts units and shows tiers. A Discount Prime Product Bundle shows a Pick any 3 row on the product page, rewards every complete set, caps sets per order, and supports a set ladder for bigger orders.
Go deeper
Run this architecture in your store
Every campaign type in this case study is included in Discount Prime, with profit analytics to verify the margin impact.