Shopify Notify Me When Back in Stock Setup in 2025

Introduction

Imagine this: a customer visits your Shopify store, finds a product they love — and it’s out of stock. What happens next?

Most stores lose that sale forever.

But smart store owners use a simple solution:  Shopify Notify me when back in stock” alerts.

With this feature, customers can subscribe to be notified instantly when an out-of-stock product becomes available again.

In this guide, we’ll show you exactly how to add back-in-stock alerts to Shopify, how to use Shopify stock alert apps or APIs, and how this feature can increase your sales and customer retention.

Let’s dive in!

Why You Need a “Back in Stock” Notification on Shopify

Problem:

When a product goes out of stock, most Shopify stores show “Sold Out” or hide the product altogether. This causes:

• Lost sales
• Frustrated customers
• Lower conversion rates
• Poor inventory insights

Solution:

Add a “Notify Me When Back in Stock” button to your product pages so shoppers can opt-in for stock alerts.

You’ll capture:

• Email addresses or phone numbers
• Purchase intent
• Increased chances of conversions when restocked

Pro tip: Use this feature to gauge demand before restocking!

Methods to Add Stock Notifications in Shopify

There are 3 main ways to set up “back in stock” alerts in your Shopify store:

1. Use a Shopify App (Easiest & Recommended)

Several apps can automate back-in-stock notifications with advanced features like email/SMS alerts, reporting, and widget customization.

2. Use Shopify Stock API (Advanced)

If you’re a developer or working with one, you can create a custom solution using the Shopify API to handle stock events and send alerts.

3. Manually Embed Form + Email Tools

You can embed a newsletter form using tools like Mailchimp, Klaviyo, or Omnisend and manually trigger emails when products are restocked.

Best Shopify Back in Stock Apps (2025)

Here are the most trusted apps to enable Shopify notify me when back in stock functionality:

1. Back in Stock: Restock Alerts

•  Features: Email/SMS alerts, automation, analytics, widget customization
• Pricing: Free up to 10 alerts/month; Paid plans start at $19.99/month
• Link: Shopify App Store – Back in Stock
  

2. Notify Me! Back in Stock Alerts

• Easy-to-install, supports both email and push notifications
• Supports variants and bulk products
• Customizable alert buttons and templates
  

3. Back in Stock & Restock Alerts by CartBite

• Adds floating stock alert buttons
• Sends alerts via email, SMS, and push
• Works well with headless Shopify setups
  

How to Set Up a “Notify Me” Alert with an App

Using the “Back in Stock: Restock Alerts” app as an example, here’s how to set it up:

Step-by-Step:

1. Install the app from the Shopify App Store
2. Go to App Settings
3. Enable “Show Notify Button” on sold-out products
4. Customize the message (e.g., “Notify me when available”)
5. Choose email or SMS collection method
6. Add your email provider (Klaviyo, Omnisend, etc.)
7. Click Save & Publish

Now your “Notify Me” button will appear on every out-of-stock product!

Customizing the Stock Alert Button

To align with your store’s design, customize:

• Text: “Get Notified”, “Notify Me”, “Email Me When Back”, etc.
• Color and Font
• Button Placement (below the price, above ATC, in pop-up, etc.)
• Confirmation Message (“You’ll be the first to know!”)

Many apps also let you A/B test button designs for higher engagement.

How Do Notifications Work?

Once the product is restocked, here’s what happens:

1. Shopify updates the product’s inventory
2. The app detects a stock change via Shopify stock API
3. The app sends automated emails or SMS to all subscribers
4. You start regaining lost sales — fast!
   

Using Shopify Stock API for Custom Alerts (Advanced)

If you’re building a custom solution:

You’ll use:

• InventoryLevel API to track quantity
• Webhooks to listen for inventory updates
• Email/SMS API to send messages (Sendgrid, Twilio, etc.)

This method gives full control but requires coding and server infrastructure.

Displaying Notify Me Without Apps (Manual Way)

If you’re avoiding apps, you can embed a form and collect email addresses for out-of-stock products manually.

Tools needed:

• Shopify Forms
• Mailchimp / Klaviyo / Omnisend
• Manual email trigger on restock

While this is cost-effective, it lacks automation and requires more manual effort to notify customers.

Benefits of Shopify Back in Stock Alerts

Adding this small feature to your store can bring big results.

Sales Recovery

Capture sales you’d otherwise lose when items go out of stock.

List Building

Grow your email or SMS list with real buyers.

Demand Forecasting

Measure how many people are waiting for a product before deciding to restock.

Customer Experience

Customers feel valued when you inform them of restocks quickly.

Best Practices for Stock Notifications

1. Don’t Use “Sold Out” Alone – Always offer an alert option
2. Inform Users – Show estimated restock date if known
3. Segment Subscribers – Email subscribers by product, not in bulk
4. Avoid Delays – Make sure restock alerts are sent instantly
5. Use Engaging Copy – “Back Soon!” or “Reserve Your Spot” works better
6. Follow up – Send a follow-up if stock is still available after 24h
   

FAQ – Shopify Notify Me When Back in Stock

How do I notify customers when a product is back in stock on Shopify?

Use a Back in Stock app from the Shopify App Store. These apps let customers subscribe for alerts and send automated emails when inventory is updated.

Can I set up “Notify Me” without using an app?

Yes, you can embed a newsletter form and manually email subscribers, but this lacks automation and requires effort to manage properly.

Do back-in-stock notifications work for product variants?

Yes. Most Shopify apps support variant-specific notifications, so users are notified only when the variant they want is back.

Are Shopify stock alerts free?

Most apps offer free tiers or trials. However, automated SMS/email campaigns for large volumes may require paid plans.

Can I use Klaviyo or Mailchimp with back-in-stock alerts?

Yes! Many apps integrate directly with Klaviyo, Omnisend, or Mailchimp to automatically manage your email flows.

Final Thought: Shopify Notify Me When Back in Stock

Don’t let out-of-stock products kill your sales.

By enabling a simple Shopify Notify Me When Back in Stock” alert on your Shopify store, you:

• Recover missed revenue
• Improve customer retention
• Build a powerful subscriber list
• Understand demand before restocking

Whether you use an app or a custom solution, back-in-stock alerts are a must-have for any serious eCommerce brand.