Send customer details to Klaviyo
Connect your list and choose how customers are added.
What this is for
Klaviyo receives new customers and changes to their contact details. Adding a profile to a list and subscribing someone to marketing are separate choices.
Before you start
- You can manage this connection and have access to your shop’s Klaviyo account.
Step by step
- 1
Open Settings → Connections → Klaviyo.
- 2
Create the private key using the permissions listed on this screen, paste it into Your Klaviyo key, and press Connect Klaviyo.
- 3
Choose the Klaviyo list. If none exists, create one in Klaviyo first and return.
- 4
Under How they go on, choose Add them to the list to leave existing marketing consent unchanged. Choose Subscribe them to your marketing emails only for customers who agreed to receive them.
- 5
Save, check the connection is active, and read the status as customer updates are sent.
- 6
Use the retry control after fixing a failed connection. Use the existing-customer option if you want the customers already in Sign OS sent across too.
Tips & gotchas
- With double opt-in enabled on the Klaviyo list, customers still confirm through Klaviyo.
- Keep the private key out of emails and screenshots. Pausing the connection stops sending updates; it does not remove profiles already in Klaviyo.