Recover lost sales with instant Back-in-Stock alerts

Capture demand and recover lost revenue. Automated back-in-stock alerts instantly notify shoppers and drive them back to your store.

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1,700+ reviews

Trusted by 18,000+

stores around the world

Process

How it works

Effortlessly set up back-in-stock alerts and bring customers back with automated notifications.

Customers subscribe

Shoppers sign up for stock notifications directly on the product page.

Inventory updates in real time

STOQ syncs with Shopify to track restocks

Instant notifications

Once the product is back, an automated email or SMS alert is sent.

Customers return & purchase

Buyers are directed straight to the product page or checkout page  to complete their order.

Why?

Why use Back in Stock alerts

Retain visitors

Back-in-stock alerts keep your customers engaged! They are less likely to purchase elsewhere, stay loyal and eventually purchase more too.

High conversion rates

Back-in-stock alerts can achieve impressive conversion rates. For example, BirkenstockCentral.com achieved a 22.45% conversion rate for their back-in-stock emails.

Better inventory management

Analyze waitlists to manage stock levels better and ensure that you are always restocking the right products - the ones your customers are most likely to purchase.

Setup

Set up in 2 minutes

Integrated With Your Store

Product Page

Add your 'Notify me' button to all product pages on your store. Stoq adds the button automatically to all out of stock products, but you can also configure which products it should appear on easily using tags.

Collection Pages

Are your customers browsing through catalogs more than specific products? No problem! Stoq can add a 'Notify me' button for all products on collections too.

Home Page

Your Home page is the first stop for most visitors and customers. Add featured products or collections to the page, and collect back in stock signups with our Home page integration.

Quick Buy

Quick Buy captures your customer's interest faster than going to a product page. And Stoq can help you collect back in stock signups from here too!

Search Page

Collect signups easily from search pages with Stoq's integration. Enable and our team will set it up to match your theme and brand!

Custom Pages

Using CRO tactics with custom pages to convert customers better? Let Stoq help you with collecting signups from these pages too with our Featured products integration.

Features

Powerful features to unlock lost sales today

Real-time alerts ensure customers never miss a restock, keeping demand high.

Real-time inventory

STOQ tracks any change to your inventory across all 
products and sends back in stock alerts soon as you restock.

Multi-channel notifications

Send email or SMS back in stock notifications to your customers.

Your Co-pilot

Let STOQ boost sales for you automatically with reminder notifications. Automatically re-notify customers if they haven't purchased the 
product yet.

Markets

Built for growing brands. STOQ sends notifications only when a product is available in your customer’s market.

Control delivery

Send notifications in batches, when you 
publish or when any variant is restocked. It’s all in your control.

Built for Shopify

Designed exclusively for Shopify. With deep care for user experience, integration with admin and fast performance, STOQ is recommended by Shopify to merchants of all sizes.

Reports

See real time data on trending products and send notifications to customers anytime for a quick boost in sales.

Analytics

Get personalized reports on your back in stock alerts, including revenue, conversion and more.

Works With Third Party Apps

Integrates seamlessly with your marketing stack, with support for Klaviyo, Mailchimp, Omnisend and more.

Support

World class Support

Fast support from real humans with deep knowledge of the platform. It doesn’t get better than this.

1,700+

Customer reviews

5.0

Star Rating

Comparison

Why leading Shopify stores choose STOQ

See how STOQ delivers more value compared to Shopify’s built-in features and other apps.

STOQ
Shopify Default
Other Apps
Automated Back in Stock Alerts
Yes
No
No
Multi-Channel Notifications (Email + 
SMS + Push)
Yes
No
Limited
Custom Branding & Personalization
Yes
No
Limited
One-Click Signup (No Login Required)
Yes
No
Yes
Performance Analytics & Reporting
Advanced Metrics
No
Basic
Multi-Language Support
Yes
No
Limited
Product Variant-Level Alerts
Yes
No
Limited
Priority Alerts for VIP Customers
Yes
No
No
Back in Stock SMS with Unique 
Discount Codes
Yes
No
Limited
A/B Testing for Notifications
Yes
No
No
Seamless Shopify Integration
Yes
Yes
Yes
Dedicated Support & Onboarding
24/7 Live Support
No
Email Support Only
FAQ’s

Got questions? We have the answers

How do preorders work on Shopify?

Preorders enable customers to purchase products before they are available, ensuring businesses capture demand early. Orders are processed immediately or upon restock, depending on store settings.

Do preorders support discount codes and installment payments?

Yes, Shopify’s preorder system integrates with discount codes and payment plans, including Buy Now, Pay Later (BNPL) options.

Can I customize the preorder messaging on my store?

Yes, businesses can modify preorder buttons, product descriptions, and checkout messages to set clear expectations for customers

Will customers be charged immediately for preorders?

Shopify provides two options: charge customers upfront at checkout or authorize payment to be captured when the product is ready to ship.

Can I set preorder limits on certain products?

Yes, Shopify allows merchants to set quantity limits on preorders to prevent overselling and better manage inventory.

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

Yes, alerts can be triggered for specific variants (e.g., size, color) so customers are notified only when their selected option is available again.

Can I track how many customers signed up for back-in-stock alerts?

Yes, STOQ provides analytics on product demand, showing how many customers signed up and conversion rates after restock.

Does Shopify have a built-in back-in-stock alert system?

Shopify does not offer native back-in-stock notifications, but apps like STOQ provide automated alerts with seamless integration.

Can back-in-stock notifications be customized?

Yes, businesses can personalize email and SMS notifications to align with their branding, including messaging, timing, and design.

How do back-in-stock alerts work?

Back-in-stock alerts notify customers via email or SMS when an out-of-stock product is restocked. Customers opt in directly from the product page, ensuring they don’t miss their desired item.

How do low stock warnings improve sales performance?

By signaling limited availability, low stock alerts increase purchase urgency, drive faster conversions, and help reduce unsold inventory.

Can I send low stock alerts via email and SMS?

Yes, businesses can automate low stock notifications through multiple channels, including email and SMS, to maximize conversions.

Do low stock alerts work for individual product variants?

Yes, low stock warnings apply to specific variants such as size or color, ensuring customers receive accurate availability updates.

Can I set custom stock thresholds for low stock alerts?

Yes, merchants can define inventory thresholds (e.g., alert customers when stock drops below five units) to optimize urgency messaging.

What are low stock warnings, and why are they important?

Low stock warnings create urgency by notifying customers when inventory is running low, encouraging faster purchases and reducing abandoned carts.