Out-of-stock means lost customers
When a product is out of stock, most visitors leave and never come back. Email back-in-stock alerts have low open rates and often arrive too late, the product sells out again before customers see it.
Back in stock alerts
Never lose a sale to out-of-stock again
Let customers subscribe to back-in-stock alerts on WhatsApp. When the product returns, Kanal sends an instant notification that drives immediate purchases.
5/5 on Shopify500+ brands trust us
Back in stock alertFincut · WhatsAppLive
- Waitlist sign-upTech T-shirt · Black, M
- Product restockedShopify inventory synced
- Back in stock alertPhoto · Buy now button
- Clicked “Buy now”Straight to checkout
- Order placed#1073 · Paid in Shopify
Revenue from restocks this month€5,610.80
Trusted by fast-growing brands and global retailers
With Kanal
Instant alerts on the fastest channel
WhatsApp back-in-stock notifications are read within minutes, not hours. Kanal captures customer interest with a simple opt-in and sends instant alerts when inventory is restocked, driving impulse purchases before stock runs out again.
- 500+
- brands use Kanal
- 5/5
- on the Shopify App Store, 132 reviews
- 5 min
- to set up the app
- 89 €
- per month, starting plan price
What you get with Kanal.Built for Shopify stores.
Connect your store in a few clicks, then compare the plans to see what each one includes.
See pricingBack in stock alerts · 01
One-click opt-in
Customers subscribe to restock alerts with a single tap. No email forms or account creation needed.
Back in stock alerts · 02
Instant notifications
Automatic WhatsApp alerts the moment inventory is restocked. Beat email by hours.
Back in stock alerts · 03
Product images & links
Include product photos and direct buy links in the notification for frictionless purchasing.
Back in stock alerts · 04
Demand insights
Track which products have the most waitlist subscribers to inform your restocking decisions.
Back in stock alerts FAQ
How do back-in-stock WhatsApp alerts work?
When a product is out of stock on your Shopify store, customers can opt-in to receive a WhatsApp notification when it's back. Kanal monitors your inventory and automatically sends an alert with a direct purchase link the moment stock is available.
How do customers subscribe to alerts?
Customers can subscribe via a WhatsApp button on your product page, through a QR code, or by messaging your WhatsApp number. The opt-in process is instant and doesn't require email or account creation.
What conversion rates can I expect?
Back-in-stock WhatsApp alerts typically convert at 25-35%, significantly higher than email alerts (~5-10%). The immediacy of WhatsApp means customers act quickly before stock runs out again.
Can I see which products have the most demand?
Yes, Kanal's dashboard shows you how many customers are waiting for each out-of-stock product. Use this data to prioritize restocking and plan inventory better.
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