Smart search suggestions and predictive results: +18.39% purchases

WinnerSite-wide

Adding smart suggestions and predictive results to site search lifted purchases by 18.39% for Andaaz Fashion.

ConvertPolo ran this A/B test for the ethnic fashion brand, and it was published as a VWO case study. Search engagement rose 28%.

+18.39% purchases
  • Purchases: +18.39% for the variant, tracked through order confirmations.
  • Search engagement: +28%, meaning more shoppers used the search tool.
  • No sample size, duration or significance level was shared.

The change

Control (A)
header
nav
Plain results list
Variant (B)
header
nav
Smart suggestionsNEW
Predictive resultsNEW

Variant adds suggestions and predictive product results as shoppers type.

Simplified mockup drawn by LiftArchive from the shared screenshots.

Control

The search bar only worked if shoppers typed exact product names. It gave no suggestions, image previews or category filters.

Variant

Search showed smart suggestions and predictive results as shoppers typed, with better navigation to relevant products.

Why it likely won

Our reading of the result, not the practitioner's claim.

  • Shoppers rarely know exact product names. Suggestions forgive typos and vague terms.
  • Predictive results let people jump straight to a product page, which shortens the path to buying.
  • Ethnic wear has many specific terms, so help with naming and spelling may matter even more here.

Caveats: The case study gives no sample size, duration or significance. Results are reported by the agency and testing vendor.

Who ran it

ConvertPolo ran this test for Andaaz Fashion and published the results (VWO case study). The numbers are theirs; the summary and commentary on this page are ours.

Read the original case study on ConvertPolo →

How to run this test on your store

Hypothesis
If we add autocomplete suggestions and predictive results to site search, then more searchers will reach a product and buy, because they no longer need to know exact product names.
Primary metric
Purchase conversion rate of visitors who search
Guardrails
  • Zero-result search rate
  • Search exit rate
  • Mobile page speed
Who should test it
Stores with a large catalog where many visitors use search, especially when product names are hard to spell or guess. It matters little if few visitors search.

Questions

Does autocomplete in site search increase sales?

It often helps because shoppers find products faster and hit fewer dead ends.

In this test it lifted purchases by 18.39%, though results vary by store.

What should predictive search show?

Usually suggested terms, a few matching products with images and prices, and relevant categories. Make sure it loads fast on mobile.

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