Definition
A back-in-stock email is a triggered email sent to shoppers who signed up to be notified when a previously out-of-stock product becomes available again. It is a high-intent automation because the recipient has explicitly requested the alert and often has strong purchase intent.
Because back-in-stock emails are permission-based and tied to a specific product, they typically achieve high open rates and strong click-through rates. They are most valuable for retailers with limited inventory, popular items, seasonal products or high-demand releases.
The best back-in-stock emails are sent immediately after inventory is updated, include a clear image of the product, and provide a direct link to purchase. Adding urgency, such as low-stock warnings or limited availability, can further improve conversion.
Best Practices
- Send the alert as soon as the product is available, not hours later.
- Show the product image, name, price and a direct purchase link.
- Add urgency if stock is limited, but avoid misleading scarcity claims.
- Allow recipients to manage their back-in-stock notifications.
- Track conversion rate and revenue to measure the impact of the program.
Related Glossary Terms
Abandoned Cart Email
An abandoned cart email is a triggered message sent to online shoppers who added items to their cart but did not complete the purchase.
Abandoned Cart Email
An abandoned cart email is an automated message sent to customers who added items to their online shopping cart but left without completing the purchase. It is one of the highest-converting email types in ecommerce.
ARPU (Average Revenue Per User)
ARPU (Average Revenue Per User) is a metric that measures the average revenue generated per email subscriber over a specific period, used to evaluate list value and campaign effectiveness.
Average Order Value in Email
Average order value in email is the average amount spent per transaction from recipients who clicked through from an email campaign.
Batch Sending
Batch sending is the practice of delivering a single email campaign to a large list in groups or waves rather than all at once.
Behavioral Email
Behavioral email is a message triggered by a subscriber's action, inaction, or engagement pattern, making it more relevant than scheduled broadcast sends.
Frequently Asked Questions
It is a notification sent to shoppers who requested an alert when an out-of-stock product becomes available again.
Send them immediately after the product is restocked. Delays reduce purchase intent.
Yes. Because recipients requested the alert, they are highly engaged and likely to open the email.
Only if the recipient has opted in for multiple alerts. Avoid spamming shoppers who already purchased or lost interest.
Usually not necessary. The demand already exists. Discounts can reduce margin without increasing conversion significantly.