Integrating Loyalty and Review Platforms With Your Email Marketing

Loyalty programmes and review platforms are two of the highest-value tools in the e-commerce stack — but only if their data flows into your email marketing programme. In isolation, a loyalty platform sends its own transactional notifications and a review platform sends its own review requests, each operating as a separate communication stream with no coordination.

When these platforms are integrated with your ESP, the data they generate becomes fuel for a more sophisticated email programme: loyalty events trigger personalised email automations, review data powers segmentation and dynamic content, and the combined effect on customer engagement and repeat purchase rate is measurably higher than either tool achieves independently.

This guide explains exactly how to build these integrations and how to use the data they provide to drive email revenue.

Loyalty Platform Integration With Email

The Key Platforms and Their Klaviyo Integrations

The major loyalty platforms used by e-commerce brands — Yotpo Loyalty (formerly Swell Rewards), LoyaltyLion, and Smile.io — all offer native integrations with Klaviyo that sync loyalty data to customer profiles in real time.

The data typically synced includes: total points balance, loyalty tier, tier name, date of last point-earning event, points expiry date (if applicable), referral links, and tier progress data (points to next tier). This data is stored as custom properties on the Klaviyo profile and updates automatically as the customer’s loyalty status changes.

Additionally, loyalty event triggers — a customer earning points, upgrading their tier, having points about to expire, redeeming a reward — are passed to Klaviyo as event data that can fire automated flows.

Setting Up the Data Flow

The integration setup process varies slightly by platform but follows a consistent pattern. You connect your loyalty platform to Klaviyo via an API key (provided in the loyalty platform’s integrations settings), configure which events should be sent to Klaviyo, and map the loyalty data fields to custom Klaviyo profile properties.

After setup, test the data flow by creating a test customer account in your loyalty programme, performing a points-earning action, and verifying that the loyalty properties and event are visible on the Klaviyo profile within your expected sync latency.

Check the sync latency during setup — some integrations push data in real time while others batch sync every 15-30 minutes. For time-sensitive flows (like expiring points reminders), real-time or near-real-time sync is important.

Loyalty Event Triggers for Email

The true value of loyalty integration is not static data — it is event-triggered automation. Here are the four loyalty event emails that consistently drive the highest engagement and revenue.

Points Earned Notification

Sent immediately after a customer earns points (typically after a purchase is confirmed or a specific action is completed), the points earned notification serves as a reinforcement of the loyalty programme’s value proposition. It tells the customer that their action was recognised, shows their current balance, and — crucially — shows how close they are to a reward or tier upgrade.

The psychological mechanism here is progress toward a goal. Showing a customer “You have 840 points — 160 away from a £20 reward” is more motivating than simply reporting a balance. Build this progress visualisation into your points earned email template.

Tier Upgrade Announcement

A tier upgrade email is one of the most positively received emails in any loyalty programme. The customer has earned recognition, and the email should feel like a genuine celebration of that — not a transactional notification.

These emails should acknowledge the achievement, clearly explain the new benefits that come with the upgraded tier, and create some urgency or excitement around using those benefits. Tier upgrade emails routinely achieve open rates of 55-70% across e-commerce programmes, making them one of the highest-engagement emails in any programme.

Expiring Points Reminder

Points that are about to expire represent unconverted value that the customer would rather use than lose. An expiring points reminder sent 30 days before expiry, followed by a second reminder 7 days before expiry, consistently drives high conversion rates because the urgency is genuine and the offer (use your points or lose them) is inherently compelling.

The key is to make the path to redemption frictionless. The email should show the exact points amount expiring, the date of expiry, and a direct link to shop now with the points balance visible in the checkout process.

Points Redemption Confirmation

When a customer redeems their points, a confirmation email that acknowledges the redemption, confirms the benefit they have applied, and reinforces the value of the loyalty programme is a positive brand touchpoint. Include a forward-looking element — how many points they still have, what they are working toward next — to keep the loyalty motivation active post-redemption.

Review Platform Integration With Email

The Key Platforms and Their Klaviyo Integrations

The leading review platforms — Yotpo Reviews, Okendo, Stamped.io, and Judge.me — all provide Klaviyo integration that enables two key capabilities: triggering review request emails from within Klaviyo (giving you control of the timing and content), and passing review data back to Klaviyo profiles as custom properties.

The review data passed to Klaviyo typically includes: review submission date, review rating (1-5 stars), product reviewed, and whether the review included a photo or video. Some platforms also pass sentiment analysis tags or specific keywords mentioned in the review text.

The Post-Purchase Review Request Sequence

Building your review request sequence inside Klaviyo (rather than relying solely on the review platform’s native request emails) gives you control over timing, template design, and integration with your wider post-purchase flow.

A well-structured post-purchase review request sequence:

Email 1 — The Primary Request (7-14 days after delivery)

Time this based on your product category’s typical usage or experience window. A skincare product might need 10-14 days of use before the customer can give an informed review. A fashion item can be reviewed after the first wear, typically within 7-10 days of delivery.

Keep the first review request simple: one clear ask, a direct link to the review submission, and a brief reminder of what they purchased (with product imagery). Do not bury the CTA in promotional content — the email has one job.

Email 2 — The Follow-Up Request (7 days after Email 1, if no review submitted)

A shorter, more direct follow-up. Acknowledge that they may be busy but reiterate that the review would mean a lot to the brand and to future customers. Some brands offer a small incentive (loyalty points, entry into a giveaway) for leaving a review at this stage.

Using Review Data to Personalise Future Emails

Review data as a segmentation and personalisation tool is underused by most brands. When review rating is stored as a Klaviyo profile property, it enables several valuable applications:

Five-star reviewer segment: Customers who have left five-star reviews are your brand advocates. They are the most natural audience for referral programme emails, for requests to share on social media, and for product launch communications that benefit from social proof. These customers will amplify your message — targeting them with advocate-specific content captures that potential.

Low-rating follow-up: A customer who leaves a two- or three-star review has had an experience that fell short of expectations. An automated flow triggered by a low review rating — routing to a customer service touchpoint rather than a promotional email — can recover the relationship before it is lost entirely. This requires a more careful integration between your review platform, Klaviyo, and your customer service tool, but the retention value is significant.

Dynamic review blocks in product emails: When your ESP can access review data, you can build email templates with dynamic review content blocks that show the specific product review that is most likely to be relevant to the recipient. A customer who has purchased in a specific category sees reviews from buyers with similar profiles, rather than generic top-reviews selected editorially.

Measuring the Revenue Impact of Loyalty + Review Integration

The combined revenue impact of loyalty and review integration is measured through a few key metrics:

• Repeat purchase rate uplift: The percentage increase in customers who make a second purchase within 90 days after loyalty integration versus before
• Average order frequency change: How the integration affects how often loyalty-enrolled customers purchase per year
• Review volume and quality: The increase in review submissions and the average rating trend after implementing the integrated review request sequence
• Loyalty email engagement: Open and click rates on loyalty event emails compared to programme average, and the revenue per send for loyalty flow emails vs. standard campaigns

Brands that implement both loyalty and review integration with a well-configured email programme typically see a meaningful lift in customer LTV metrics within 6-12 months — the loyalty mechanics drive repeat purchase frequency, and the review content builds the trust that attracts new buyers to convert.

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Excelohunt builds loyalty and review integrations as part of a comprehensive email programme — connecting the data flows, building the event-triggered automations, and using review and loyalty data to drive personalisation across campaigns and flows.

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