Introduction
A well-timed Klaviyo back-in-stock flow can significantly boost sales by notifying interested customers when out-of-stock products become available again. This automation allows e-commerce brands to notify customers with Klaviyo and capitalize on pent-up demand with minimal effort. In this guide, we'll walk through the steps to set up inventory alerts in Klaviyo, share best practices, and provide actionable tips to maximize the impact of your back-in-stock notifications.

How Do I Create a Back-in-Stock Notification Flow in Klaviyo?
To create a Klaviyo back-in-stock flow, you need to integrate back-in-stock notifications with your store, set up a triggered flow, and design automated emails that alert customers when their desired products are available again. The process involves creating a sign-up form, configuring the back-in-stock trigger, and automating the notification emails.
Step-by-Step Guide: Setting Up a Back-in-Stock Flow in Klaviyo
1. Log in to Your Klaviyo Account
Visit www.klaviyo.com and enter your credentials.
2. Set Up the Back-in-Stock Feature on Your Website
a. Install the Back-in-Stock Feature
If you use Shopify, BigCommerce, or another supported platform, install the Klaviyo Back-in-Stock integration from the Klaviyo app store or your e-commerce platform’s marketplace.
b. Add the Back-in-Stock Button to Product Pages
Navigate to your e-commerce platform's product page settings.
Add the back-in-stock button where customers can sign up for alerts.
Ensure the button is visible and clearly communicates the notification purpose.
3. Create a Back-in-Stock Flow in Klaviyo
a. Navigate to the Flows Section
Click on Flows from the left-hand menu.
Select Create Flow to start a new automation.
b. Choose the Back-in-Stock Flow Type
Select Metric Triggered Flow.
Choose Subscribed to Back in Stock as the trigger metric.
This ensures the flow triggers when a product is restocked and subscribers are waiting for a notification.
4. Design the Back-in-Stock Email
a. Add an Email to the Flow
Drag and drop an Email block into your flow.
Click Configure Content to design your back-in-stock email.
b. Customize the Email with Dynamic Product Data
Use dynamic tags like {product_name}, {product_image}, and {product_url} to create a personalized experience.
Include a strong call to action (CTA) such as "Shop Now" or "Get It Before It's Gone".
c. Set Up Time Delays (Optional)
If needed, add a time delay between the product being restocked and the notification email being sent.
Example: Add a 1-hour delay to ensure inventory is updated accurately before emails are sent.
5. Activate and Test the Flow
Review the entire flow to ensure triggers, emails, and settings are configured correctly.
Click Review and Turn On to activate the flow.
Test by manually restocking a product and checking if a notification email is sent to a test subscriber.
Best Practices for Klaviyo Back-in-Stock Flows
1. Personalize Back-in-Stock Emails
Use dynamic data to include the specific product name, image, and direct link to the product page.
2. Create Urgency with Your Messaging
Phrases like "Back in Stock—Limited Quantities Available" or "Hurry, While Supplies Last" can motivate quick purchases.
3. Segment Your Back-in-Stock Audience
Create segments for subscribers who signed up for back-in-stock alerts and target them with additional offers if they don't convert initially.
4. Avoid Over-Notification
Enable Smart Sending to prevent sending too many emails to highly engaged subscribers.
5. Monitor Performance and Optimize the Flow
Regularly review metrics like open rates, click-through rates, and conversion rates.
Conduct A/B testing on subject lines and email design to improve engagement.
Common Mistakes to Avoid with Back-in-Stock Flows
Not Updating Inventory Fast Enough: Delayed inventory updates can result in frustration if customers click through to a sold-out product.
Ignoring Customer Preferences: Avoid sending back-in-stock emails for products the subscriber is not interested in.
Poor Timing of Emails: Sending notifications at odd hours may reduce engagement rates.
Conclusion
Implementing a Klaviyo back-in-stock flow is an effective strategy to recapture lost sales opportunities by automating customer notifications when products are available again. By following this guide, you can set up inventory alerts, design engaging emails, and maintain a positive customer experience.
📩 If your email and SMS marketing strategies are underperforming and you’re unsure how to set up a back-in-stock notification flow in Klaviyo, let’s talk.
At Dispatch, we help brands maximize revenue from email & SMS without damaging subscriber engagement.
👉 Connect with Dispatch today to optimize your Klaviyo setup and marketing strategy.
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