How to Connect Klaviyo to Essential Loyalty
Connecting Klaviyo lets you use your loyalty data — points, tier, referral status, birthday — for segmentation and flows inside Klaviyo itself, alongside the rest of your marketing data. This is a full authenticated connection: once connected, customer profiles sync automatically and every loyalty event (points earned, rewards redeemed, tier changes, and more) is pushed to Klaviyo in real time.
Connect your Klaviyo account
- Go to Settings → Integrations.
- Under Email Marketing, click into Klaviyo.
- Click Connect with Klaviyo.
- A popup opens for you to log in to Klaviyo and approve the connection. Approve it there — that screen and its wording belong to Klaviyo, not to Essential Loyalty.
- Once approved, the popup closes and the page updates to show a green Connected badge.
Important: the Enabled/Disabled toggle stays greyed out until you're connected — that's expected. It only matters once there's a live connection to turn on or off.
That's it — no API key needed for this path. (There's also a legacy private-API-key method, still supported for stores that set it up before OAuth existed — see below.)
What syncs to Klaviyo
Customer profile properties, kept in sync automatically as they change:
- Points balance
- Lifetime points
- Loyalty status (excluded/included)
- Referral URL
- VIP tier
- Date of birth
To confirm a profile actually synced: in Klaviyo, go to Profiles and search by the customer's email — you'll see the Essential Loyalty properties (points balance, tier, and so on) listed on their profile.
Events, pushed the moment they happen, so you can build Klaviyo flows off them:
| What happens in Essential Loyalty | Klaviyo metric name |
|---|---|
| Customer joins the loyalty program | Joined Loyalty Program |
| Points earned (orders, actions) | Points Earned |
| Points deducted (refund) | Points Deducted |
| Reward redeemed | Reward Redeemed |
| Referral reward earned | Referral Reward Earned |
| Tier achieved | Tier Achieved |
| Reward expired | Points Expired |
| Loyalty profile updated (balance, tier) | Loyalty Profile Updated |
You'll find this same table on the Klaviyo settings page in the app, under Tracked events.
Good to know: all 8 metric names above appear in Klaviyo as soon as you connect — even before any real customer activity happens — so they're immediately available to pick as a Flow trigger. If you don't see them in Klaviyo right after connecting, something's off — they should show up immediately. Real customer data is different: profiles and events sync as activity happens, not all at once retroactively, so it's normal for that to build up gradually. Essential Loyalty's own settings page doesn't show a live preview of synced data — check Analytics → Metrics in Klaviyo directly for the 8 names above.
Full data synchronization
Newly connected? Profiles sync automatically going forward, but existing customers can be pushed over too:
- On the Klaviyo settings page, find the Full data synchronization card.
- Click Synchronize to push all customers now.
- This is rate-limited to once per hour — the button disables itself in between, and the card shows Last run: with the most recent sync time.
Legacy: connecting with a Private API Key
Some stores connected before OAuth existed and are still on a private-API-key connection. Both methods work, but OAuth is the more secure option going forward:
- Get your key from Klaviyo: Get your Private API Key here (opens
klaviyo.com/account#api-keys-tab), or find it yourself under Klaviyo → Settings → API Keys. - Paste it into the Private API Key field on the Klaviyo settings page and save.
If a store is already connected this way, the page shows a note that it's using a private API key and offers the option to disconnect and reconnect with Connect with Klaviyo instead.
Disconnecting
Click Disconnect on the Klaviyo settings page. This turns the integration off — it does not delete anything already synced to Klaviyo, and doesn't touch your Klaviyo account itself.