Product Grouping Strategy: Which Products to Bundle Together on Shopify

The Core Principle of Product Grouping

A bundle works when customers look at the product group and think "I was already planning to buy at least two of these." Your job is to find those natural purchase clusters within your catalogue and formalise them as bundles.

The most common mistake in product grouping is choosing items based on what the merchant wants to sell rather than what the customer naturally buys together. A bundle built around your overstocked slow-movers will not convert well, even with generous discounts. A bundle built around your bestsellers in a complementary category will convert even with modest discounts.

Method 1: Frequently Bought Together Analysis

Look at your Shopify order history and identify which products appear together most often in the same order. These are your natural bundle candidates. Products that customers already buy together in the same transaction are ideal for a bundle because you are formalising a behaviour that already exists and rewarding customers for doing it intentionally.

Method 2: Category Coherence

Group products from the same category or use case. A skincare brand might create a morning routine bundle including cleanser, toner, and moisturiser. A coffee brand might create a brewing bundle including a grind, a filter, and a companion syrup. The shared use case makes the bundle immediately understandable to customers.

Method 3: Complementary Products Across Categories

Some of the most effective bundles cross category lines when the products share a use context. A yoga mat, a resistance band, and a water bottle all belong to the same activity even if they sit in different product categories. A bundle built around a shared lifestyle or activity can perform very well because it signals to customers that you understand how they actually use your products.

Method 4: Price Point Clustering

Group products within a similar price range. A bundle where most items are $20 to $30 is easy for customers to evaluate. A bundle mixing $15 items with $80 items creates cognitive friction because customers have to weigh very different value propositions in a single decision.

Niche-Specific Bundle Ideas

Apparel and fashion: Coordinate bundle (top, bottoms, and accessories in matching tones). Seasonal wardrobe starter. Athleisure set.

Beauty and skincare: Morning routine. Evening routine. Targeted treatment bundle (brightening, hydration, anti-ageing).

Food and beverage: Flavour sampler (multiple variants of a core product). Entertaining bundle. Brewing or preparation kit.

Home and living: Room refresh bundle (items for a specific room). Hosting kit. Self-care set.

Supplements and wellness: Daily stack (AM and PM formulations). Goal-based bundle (energy, recovery, focus).

How Many Products Per Bundle?

Start with 6 to 12 eligible products per bundle. Too few limits customer choice and makes the bundle feel restrictive. Too many overwhelms customers with decision fatigue and reduces engagement.

As you gather data on which products customers select most often within a bundle, you can refine the product list. Remove items that are rarely chosen and add new products that fit the bundle theme.

Testing and Iteration

Product grouping is not a one-time decision. Create your initial bundle based on the principles above, run it for two to four weeks, and review the data. Which products are being selected? Which tiers are customers reaching? Are there products never being selected that could be replaced with better candidates?

Use Bundle MixMatch to update product lists and tiers at any time. The iteration cycle is fast and low-risk. See the how it works guide for the full setup process.