Send Back in Stock and preorder events to Klaviyo (Essential Preorder app)
Connect Klaviyo to send Back in Stock alerts and preorder orders to your Klaviyo account. The app sends events. You build the emails or SMS in your own Klaviyo flows. Needs the Starter plan or higher.
Connect Klaviyo
- In the app, open Back in stock and stay on the Settings tab.
- Next to Integrations, click Manage.
- On the Klaviyo card, click Connect Klaviyo.
- Klaviyo opens. Log in if asked and click Allow.
- You return to the app. The card shows Connected and the name of your Klaviyo account.
If nothing opens, your browser blocked the pop-up. Allow pop-ups and try again.
Send Back in Stock alerts through Klaviyo
- Open your Back in Stock campaign and go to the Notification settings tab.
- Under Send emails through, pick Klaviyo.
- Save.
- In Klaviyo, create a flow with the Back in Stock Product Available metric as the trigger, and add your email.
The app no longer sends its own Back in Stock email for this campaign. You can pick Klaviyo before you connect, but nothing is sent until Klaviyo is connected.
Events the app sends
| Event in Klaviyo | When it is sent |
| Back in Stock Waitlist Joined | A customer signs up with Notify me on a campaign that sends through Klaviyo |
| Back in Stock Waitlist Confirmed | The customer confirms the double opt-in email (only if double opt-in is on) |
| Back in Stock Product Available | The variant is back in stock. Use this one to send the alert |
| Preorder Placed | A customer places an order with preorder items. Guest orders with no email are skipped |
Every event carries the Tag from the Integrations page, so you can filter by it in Klaviyo.
What you see in the app
In Back in stock → Products & Notifications, Notification sent at shows when the event went to Klaviyo. Last email status and Order show N/A, because Klaviyo sends the email. Check delivery in Klaviyo.
If the connection stops working
The Klaviyo card says why, for example if the app was removed in Klaviyo or the connection expired after 90 days without use. Click Reconnect Klaviyo.
Need help? Contact support from the app.