Klaviyo

What the extension does

Capability	Direction	Summary
Profile sync	Bidirectional	Profile attributes, identities and comms preferences kept in sync
Comms preference sync	Bidirectional	Klaviyo subscription state mirrored as Omneo comms attributes (and vice versa)
Customer activity records	Omneo → Klaviyo	Loyalty, rewards, dates, addresses, benefits, lists pushed as Klaviyo data source records
Custom metrics / events	Omneo → Klaviyo	Send any Omneo reaction to Klaviyo as a custom event
Klaviyo system webhooks	Klaviyo → Omneo	Bounces, subscribes, unsubscribes etc. update Omneo comms preferences in real time
Klaviyo Flow webhooks	Klaviyo → Omneo	Custom Flow actions (e.g. issuing rewards) call into Omneo
Profile deletion & merging	Bidirectional	Omneo deletions and merges are mirrored in Klaviyo
Master list management	Omneo → Klaviyo	Optional master list keeps every subscribed profile in a single Klaviyo list

In this section

Installation

Install the extension from the Klaviyo marketplace and what gets created on first install.

How profiles are matched, created, and updated between Omneo and Klaviyo.

How Klaviyo’s system webhooks (bounces, subscribes, etc.) update Omneo comms preferences.

Trigger Omneo actions from a Klaviyo Flow, including the headers and body Omneo expects.

Send Omneo reactions to Klaviyo as custom events, with optional identity tokens.

How inbound and outbound work is queued and processed in the background.

Keep every email-subscribed profile in a single Klaviyo list.