How to set up double opt-in in Klaviyo

Double opt-in asks new subscribers to confirm their address by clicking a link before they join your list. In Klaviyo you enable the setting on the list, customise the confirmation email, and make sure forms and flows only treat confirmed people as subscribed.

Have this ready.

• A decision on whether confirmation suits your list and compliance needs
• The list that will use double opt-in
• Brand-matching wording for the confirmation email
• Understanding of how your forms and welcome flow respond to confirmation

Steps.

1. 1. Decide where it applies

   Choose which lists need confirmation. Some stores use it on every list, others only where list quality has been a problem or local rules favour it.

2. 2. Open the list settings

   Go to the list, open its settings and switch the opt-in process to double opt-in. Save the change.

3. 3. Edit the confirmation email

   Customise the message so it looks like your brand, explains why they are being asked, and has one obvious confirm button.

4. 4. Set the confirmed page

   Make sure people land on a useful page after confirming, such as a thank you or a prompt to shop, not a blank screen.

5. 5. Align the welcome flow

   Trigger the welcome flow from the list so it starts after confirmation. Check that the incentive is delivered once, not twice.

6. 6. Tell forms what to say

   Update form success messages so they tell people to check their inbox and confirm. Mention the sender name they should look for.

7. 7. Test the full path

   Sign up with a fresh address, find the confirmation email, click it, and verify the profile status and welcome email.

Common pitfalls.

• Promising a discount on the form that only arrives after a confirmation people never complete.
• Leaving the default confirmation email unbranded and easy to ignore.
• Expecting confirmed status before the click, so flows fire too early.
• Putting the confirmation email in spam because the sending domain is not authenticated.

Check it worked.

• List setting shows double opt-in
• Confirmation email arrives promptly and looks right
• Clicking confirm marks the profile as subscribed
• Welcome flow starts after confirmation
• Form success message tells people to confirm

Klaviyo changes its interface from time to time, so treat the steps as the order of work and match the names to what you see on screen.

Rather have this done for you? See our klaviyo email marketing service or book a free audit.