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Cross-selling is a sales technique that encourages a customer to buy something in addition to the item they're already planning to purchase — a related or complementary product that adds real value to their original purchase. The classic example: someone buying a camera gets shown a memory card and a case at checkout.

  • Cross-selling — offers a different, complementary product alongside the original
  • Upselling — offers a higher-tier or upgraded version of the same product
  • "Frequently bought together" sections on a product page
  • Related-products displays near the bottom of a listing
  • Cart-page suggestions shown just before checkout
  • Post-purchase emails recommending items that pair with what was just bought
  • Keep suggestions genuinely relevant to what's already in the cart
  • Don't overload the page with more than two or three suggestions
  • Time the offer for a natural moment — mid-browsing or at checkout, not immediately on arrival
  • Bundle pricing can noticeably improve conversion on cross-sell offers

Cross-selling is one of the most efficient ways to grow average order value, since it's aimed at people who are already committed to buying — turning one additional relevant suggestion into meaningfully more revenue per transaction, often with very little extra marketing spend.

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