Issue

When sending profile or event data from a Segment Engage/Personas space to the Klaviyo (Actions) destination, the source receives events, but the destination shows 0 delivered/failed events and displays "Coming soon" in the delivery overview.

Product

Segment

Environment

Segment Console

Cause

The required mappings to add or remove profiles from a Klaviyo list are not configured in the destination. Without these mappings, Segment cannot send audience data to Klaviyo.

Resolution

1. In the Klaviyo (Actions) destination, navigate to the Mappings tab.
2. Add and enable both the “Add Profile To List (Engage)” and “Remove Profile from List (Engage)” mappings.
3. Enable the destination and mappings.
4. In the audience settings, toggle “Send Track” ON and keep the default event names.
5. Once configured, Segment will automatically create a list in Klaviyo with the same ID as the Engage audience, and data will begin syncing. The initial sync may take several hours.