Connecting With 3rd Party Email Marketing Services

Connecting your popup to Klaviyo

Important: You can only connect Subscribe, and Subscribe to Unlock Coupon popups to email marketing services.

To connect a popup/variant to an external email marketing service, open it in the Popup editor and switch to the Settings panel.

There, you should find a field named Send collected emails to. Click Configure and a modal should slide down the page.


You’ll see you have two options when it comes to collecting emails: 1) Storing them inside holdonstranger; and 2) Forwarding them into an external email marketing service. Select the second option.

A new field should open with a few email marketing services to choose from. Select Klaviyo.


A field will open up asking you to enter an API Key – a sort of password that gives holdonstranger permission to interact with your Klaviyo account.


Here’s how to get that key:

1) Log into your Klaviyo account.
2) Click Account at the top-right corner of the screen, then click Account settings from the drop-down menu.
Account settings
3) In the next screen, switch to the API Keys tab.
Private API Keys
4) Now, you can either use an existing API Key or create a new one just for holdonstranger. If you choose to create a new one, we suggest naming it ‘holdonstranger’ (or something similar) so you can always remember it’s purpose.

That’s it.

Now copy that Key and paste it into the API Key field in holdonstranger. The Connect button should turn green. Click it.

If all goes well, you should now be able to see your Klaviyo lists. Select one and click Save & Close. That’s it.

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