Connect Klaviyo to Notify Me! to power your back-in-stock and pre-order alerts with Klaviyo — sync opted-in shoppers to a Klaviyo list, and optionally let Klaviyo send the alert emails through your own Klaviyo Flows.

Connecting alone changes nothing about who sends your emails. Notify Me! keeps sending your alerts exactly as before — emails are handed off to Klaviyo only if you explicitly choose Klaviyo as the sender (covered below).

The connection uses secure sign-in — there are no API keys to copy or store. You can revoke it any time from Klaviyo or by clicking Disconnect here.

Already using the old API-key Klaviyo integration? See Migrating to the new Klaviyo integration — the page will show an "Action required" banner until you reconnect.

Your shoppers are protected if the connection expires. If Klaviyo is your sender and the connection expires, Notify Me! automatically falls back to sending the alert emails itself — shoppers keep getting notified (from Notify Me!'s templates, not your flows) until you reconnect. We also email you when this happens.

Go to Settings → Notifications — the Customer notifications card at the top. The Email provider selector offers:

Notes:

Adding shoppers to your Klaviyo list is always the shopper's opt-in: as they sign up for an alert they see a consent checkbox (e.g. "Notify me about other news or offers too"), and only shoppers who tick it are subscribed to your "Notify Me - Back in Stock" Klaviyo list.

You enable it — nothing is added to your storefront automatically. After you connect Klaviyo, the Klaviyo page shows a reminder banner with a link to the subscriber form; go to Back in stock → Customization → Subscriber form → set the Email marketing consent field to Show (you can also customize its label). Until you do, your form is unchanged. (Shops that were already collecting consent through an integration keep their checkbox exactly as it is.)

Everyone in "Notify Me - Back in Stock" asked to hear about restocks and gave marketing consent — a high-intent audience for your Klaviyo campaigns and segments. The list is created automatically the first time it's needed.

When Klaviyo is your chosen sender, the "Events sent to Klaviyo" card on the Klaviyo page lists every event, with the data each one carries:

Each event fires under the same conditions the matching Notify Me! email would have been sent (channel enabled, shopper not unsubscribed, within plan limits), and carries product details (name, variant, image, URL, price, dates) you can drop straight into your Klaviyo email. Full details: Building Klaviyo flows for Notify Me! alerts. For background on how back-in-stock flows work on Klaviyo's side, see Klaviyo's own guide: How to build a back in stock flow.

Each event row has a Send test event button. Enter an email address you control — a real inbox, not a made-up one — and Notify Me! pushes a sample of that row's event (testing the reminder row sends a "Back in Stock Reminder" event, and so on). The sample is built from a real product in your store, so you can watch your flow fire and preview the email with your own product data; if your store has no products yet, placeholder sample data is used instead. If no Klaviyo profile exists for that email, Klaviyo creates one from the event.

Test events work in any sender mode, so you can fully verify flows before switching sending to Klaviyo.

⚠️ Don't test with placeholder addresses like [email protected] — Klaviyo accepts the event but may silently drop it during processing, which looks like the integration is broken when it isn't.

Click Disconnect on the Klaviyo page. Your Klaviyo data (lists, profiles, past events) stays in Klaviyo — disconnecting only stops Notify Me! from sending new events or subscribing new shoppers. If Klaviyo was your email sender, Notify Me! automatically reverts to sending the alerts itself.

If you have any questions about the Klaviyo integration, reach out to us through live chat in the app or at [email protected] — we're happy to help.