EF: Back in Stock Alerts helps merchants collect customer emails on sold-out product variants and send automatic restock notifications when inventory returns. The app matches each alert to the exact product and variant a shopper requested, so customers receive relevant emails only. Merchants can customize the storefront alert block, manage pending and sent notifications, and connect their own verified SMTP sender or use the default sender.

• Collect waitlist emails on sold-out product variants
• Send automatic back-in-stock emails when inventory returns
• Match alerts to the exact product and variant shoppers requested
• Customize storefront alert block designs from the app
• Let merchants use their own verified SMTP sender