Understanding how reviews sentiment trends are calculated
You will learn
Learn how Klaviyo calculates sentiment trends for reviews. This AI-driven analysis identifies changes in what reviewers are saying about your products and brand, so you can respond quickly and make improvements where needed.
Only verified reviews submitted through review requests can be analyzed for sentiment.
How to opt in to sentiment trend analysis
The features described in this article require opt in. To enable these features in your account:
- Navigate to Reviews.
- Select the Performance tab.
- Scroll to the Review sentiment card.
- Select Enable sentiment analysis. If your account already has an industry selected, sentiment analysis is enabled without opening the industry form.
- If the Industry information panel opens, select your Industry and, if shown, your Vertical.
- In the panel, click Save. To enable sentiment analysis with General topics instead, select Skip selection.
You can update your account’s industry 2 times every 30 days. Select Change industry next to your industry in the Review sentiment card. If you skipped industry selection, select Choose industry to set it.
About sentiment trend analysis
Sentiment trend analysis flags changes in what people are saying from month to month. For example, your June trend report might indicate that your overall sentiment for product fit is positive but that your latest product drop has started to bring that average down. Your all-time customer sentiment for product fit could still be high, but if it begins trending downward, sentiment trend analysis can alert you quickly so you can make changes right away.
Access your sentiment trend report by navigating to Reviews > Overview and scrolling to the [Month] trend report card.

How sentiment trends are identified
Klaviyo identifies trends using a combination of statistical analysis and natural language processing (AI). It identifies topics in review text (e.g., shipping, fit, taste, customer service) and assigns positive or negative sentiment to the topics it identifies. A review can mention more than 1 topic, with a different sentiment for each. These topics vary based on your industry and the products you sell.
Then, each month, Klaviyo uses statistical tools to identify any abrupt or significant changes in sentiment for each topic compared to past months.
Limitations of sentiment trend identification
If sentiment trend analysis is not available in your account, you may not have qualifying data. Sentiment trend analysis is only available if your account has all of the following:
- Historical data
In order to identify trends, Klaviyo’s AI models must have access to several months of review history. If you recently began using Klaviyo Reviews, you may not have access to review sentiment trends for 2-3 months. - Notable changes
If there are no notable changes in the content of your reviews from month to month, you won’t see a trend report, because there are no changes to report on. - Sufficient review volume
Klaviyo’s models need a sufficient volume of reviews in order to produce statistically significant results. If you have few reviews in a month, sentiment analysis trends will not be available to you.
How to access your reviews sentiment trend report
See your sentiment trend report by navigating to Reviews > Overview and viewing the [Month] trend report card. The report covers the previous month and compares it with the month before. For example, a June report compares June with May. The card only appears when there is at least 1 trend to show for the reporting period.
Select a topic card to see reviews for that topic and month. If See all appears, select it to view additional trends.
Additionally, you can opt in to monthly email notifications when a new sentiment analysis report is available. To enable the email summary:
- Navigate to Reviews > Reviews settings.
- Select Publishing rules and notifications and scroll to Notifications.
- Enable the Monthly trend report option.
- Under Email report to, select the users in your Klaviyo account who should receive the report.
- Select Save changes.
Industries and topics
The table below lists the review topics for each industry group. Other industries, or accounts without an industry selection, use the General topics. Where applicable, shortened topic names are shown in parentheses.
Industry | Topics |
General | Accuracy of Product Description (Description) Product Appearance (Appearance) Customer Service Product Packaging (Packaging) Product Price and Value (Value) Quality and Effectiveness (Quality) Shipping and Delivery (Shipping) |
Home and Garden | Accuracy of Product Description (Description) Product Appearance (Appearance) Customer Service Ease of Use Product Packaging (Packaging) Product Price and Value (Value) Quality and Effectiveness (Quality) Shipping and Delivery (Shipping) Product Size and Quantity (Size) |
Health and Beauty | Accuracy of Product Description (Description) Product Appearance (Appearance) Customer Service Product Ingredients (Ingredients) Product Packaging (Packaging) Product Price and Value (Value) Quality and Effectiveness (Quality) Shipping and Delivery (Shipping) Product Size and Quantity (Size) |
Food and Beverage | Accuracy of Product Description (Description) Product Appearance (Appearance) Customer Service Product Flavor Product Ingredients (Ingredients) Product Packaging (Packaging) Product Price and Value (Value) Shipping and Delivery (Shipping) Product Size and Quantity (Size) |
Jewelry | Accuracy of Product Description (Description) Product Appearance (Appearance) Customer Service Fit and Sizing (Fit) Product Packaging (Packaging) Product Price and Value (Value) Quality Shipping and Delivery (Shipping) |
Apparel and Accessories | Accuracy of Product Description (Description) Product Appearance (Appearance) Comfort Customer Service Fit and Sizing (Fit) Product Packaging (Packaging) Product Price and Value (Value) Quality and Effectiveness (Quality) Shipping and Delivery (Shipping) |
Sporting Goods | Accuracy of Product Description (Description) Product Appearance (Appearance) Customer Service Ease of Use Fit and Sizing (Fit) Product Packaging (Packaging) Product Price and Value (Value) Quality and Effectiveness (Quality) Shipping and Delivery (Shipping) |
Additional resources
- Understanding reviews performance
Learn how to monitor and understand your reviews analytics in Klaviyo, including your response rate, average rating, and more. These analytics are important to understanding whether your review request flows are working as intended, and tracking your customers’ response to your products.
- How to create a customer service ticket when you receive a negative review
Learn how to create a flow in Klaviyo to create a customer service ticket whenever someone submits a negative review. Notifying your customer service team allows them to proactively reach out and amend any negative experiences your customers may have.