Glossary
ecommerce

Cross-Selling

Definition

Suggesting related or complementary products to customers based on what they're buying. The classic 'customers also bought' approach.

What is Cross-Selling?

Cross-selling is recommending products that complement what a customer is already buying. If someone purchases a camera, suggesting a memory card, camera bag, and tripod is cross-selling.

Unlike upselling (upgrading to a better version of the same product), cross-selling adds related items to the order.

Why Cross-Selling Works

Cross-selling increases average order value while genuinely helping customers. Done well, it:

  • Reminds customers of things they need
  • Completes their purchase with essential accessories
  • Introduces products they might not have discovered
  • Increases satisfaction by ensuring they have everything

The key is relevance. Random suggestions annoy; genuinely useful recommendations convert.

Cross-Selling Strategies

"Frequently Bought Together"

Show products often purchased in combination. Data-driven and effective.

"Complete the Look"

For fashion, show coordinating items that work with the selected product.

"You'll Also Need"

Highlight essential accessories: batteries for toys, cables for electronics, care products for shoes.

Bundle Offers

Pre-built combinations at a slight discount. Simplifies decisions and increases basket size.

Where to Cross-Sell

Product Pages

Show related items while browsing. Natural discovery moment.

Cart Page

Suggest additions before checkout. "Don't forget" messaging works here.

Checkout

Light suggestions only – don't derail the purchase process.

Post-Purchase

Email suggestions after delivery. "Goes great with your recent purchase."

Cross-Selling Best Practices

Relevance First

Only suggest genuinely related products. Irrelevant suggestions damage trust.

Limit Quantity

Three to four suggestions maximum. More creates overwhelm.

Smart Pricing

Cross-sell items priced appropriately relative to the main purchase. GBP 10 accessories for a GBP 200 purchase, not GBP 150 add-ons.

Test and Learn

Experiment with product combinations, placement, and messaging. What works varies by audience.

Measuring Success

Track cross-sell conversion rate (how often suggestions are accepted) and the impact on average order value. Monitor which product combinations perform best.

Want to Learn More?

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