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Match Score: Thresholds, Product Sorting and Exclusions

Learn how match score works in Lantern, how it’s calculated, and how settings like thresholds and exclusions impact your product results.

Written by Traian

The match score shows how well a product fits a customer’s quiz answers. For example, a product that matches 3 of the selected answers in a 6-question quiz scores 3/6, or 50%.

match score

By default, the score uses an x/y format, where y is the number of questions and x is the number of selected answers the product matched. You can show it as a percentage or hide it using the Match Score Format settings.

Sorting Priority

With default answer weights, products that match more of the customer’s answers rank higher, and their match score reflects this.

If you customise answer weights to give certain answers more influence, the order can change, so a product with a lower displayed match score can rank higher. To learn how custom weights affect the order, see What are answer weights?

The sorting priority decides the order of products with the same total weight.

To choose it, open the results page in the quiz editor, select Product recommendations, then pick an option from the Sorting priority dropdown in the right-hand menu.

sorting options

Products can be sorted based on:

  • Lowest Price

  • Highest Price

  • A-Z

  • Z-A

  • Random

  • Best selling (units sold, last 60 days)

  • Newest (product creation date)
    ​

If you choose Best selling (units sold, last 60 days), the products your store has sold the most units of in the last 60 days are shown first. Lantern counts units sold across your whole store, not only orders that came from the quiz. Products that tie, including products with no sales yet, are shown alphabetically.

If you choose Newest (product creation date), your most recently added products are shown first. Lantern uses the date each product was created in your Shopify admin, not the date it was published to your online store, so a product you created months ago as a draft and published today still counts as an older product. Products created at the same moment, for example in a bulk import, are shown alphabetically.

To learn how products earn their match score, see Product Matching. For the other settings that control how recommendations are displayed, see Set-up your Results Page. To understand why products without a perfect score can appear in your results, see Why am I not seeing just perfect score products?

Issue: Different Results for the Same Quiz Journey

If the sorting priority is set to "Random," products with the same total weight appear in a random order. This can result in different results being displayed even when you take the same quiz journey multiple times.

  • Cause: Random sorting of products with the same total weight.

  • Solution: Check the sorting priority setting
    ​

Match score thresholds

The better a product matches the selected answers, the higher its score.

The Match Score Threshold slider lets you control how closely products need to match before they are shown.

  • Set a higher percentage (for example, 70%) to show only very strong matches

  • Set a lower percentage (or 0%) to show more products, including weaker matches

Image showing the tolerance slider for setting a match score threshold in the quiz builder. The


To adjust this setting:

  1. Go to the Results Page in your quiz

  2. Open the Product Recommendations section

  3. Set your desired minimum match percentage

This helps you control how strict or flexible your product recommendations are.

The Product Recommendations section also has a Total Weight Threshold slider. It only matters if your quiz uses custom answer weights. It sets the minimum total weight a product needs to be shown, from 0 to 100,000.

Excluded Products

Excluded products are useful when a specific answer should prevent certain products or variants from appearing in the results.

For example, with nutritional supplements: a product might be a strong match overall, but if it contains an ingredient the customer is allergic to, it should not be shown.

Image showing a matched products and excluded products.

If you exclude a product (or variant) from an answer:

  • And that answer is selected during the quiz

  • The product will not appear in the results, regardless of its match score

This ensures that important conditions (like allergies or incompatibilities) are always respected. For more information, check out this article.

Issue: Fewer Products Displayed Than Expected

Potential cause 1: High match score threshold

If your match score threshold is set too high, only very strong matches will be shown. This can limit the number of products displayed.

Solution:
Lower the match score threshold to include more products, including partial matches.

Potential cause 2: Too many product exclusions

If too many products are excluded across different answers, you may end up with very few (or no) products left to show.

Solution:
Review your product exclusions and check that you have not accidentally excluded too many products or key variants.

Potential cause 3: High Total Weight Threshold

If your quiz uses custom answer weights and the Total Weight Threshold is set too high, products whose total weight is below it are hidden. This can limit the number of products displayed.

Solution:
Lower the Total Weight Threshold to include more products.

Tips for Optimizing Quiz Settings

  1. Set an Appropriate Match Score Threshold: Adjust the threshold to balance the quality and quantity of displayed products.

  2. Choose the Right Sorting Priority: Use price-based or alphabetical sorting for consistent results, best-selling sorting to show the products your store sells most first, newest sorting to show your most recently created products first, or random sorting for variety.

  3. Review exclusions: Only exclude when needed to avoid removing too many products.

  4. Test Your Quiz Settings: Preview the results page to ensure the settings align with your goals.

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