Klaviyo Agency

More than newsletters: what Klaviyo really is

If Klaviyo makes you think of a newsletter tool, you are a few years behind. Klaviyo today is a B2C CRM: a platform that unites marketing, customer service and analytics on one shared data foundation. Every order, every click, every return lands in the same customer profile, and that is exactly where campaigns and automations come from that don't feel like mass mail.

On the marketing side, Klaviyo runs email, SMS, WhatsApp, push and signup forms from a single system. Add the K:AI agents: Composer creates campaigns and takes over recurring tasks, while the Marketing Agent keeps optimising alongside. On the service side, Helpdesk, Customer Hub and the Customer Agent grow into a support setup that uses the same customer data as your marketing. And underneath sits the Klaviyo Data Platform, a CDP that brings all sources together and makes them measurable with Marketing Analytics.

For you, that means one less tool per job and one data model for everything. For us, it means the integration has to be right. Because a CRM is only as good as the data flowing into it, and that is exactly where our work begins.

Multi-language Klaviyo, solved properly

The standard Klaviyo-Shopify integration is set up in minutes, plug and play. There is just one thing it cannot do: multi-language. If you run a shop in several languages, you can either send everyone emails in your main language, run a separate Klaviyo account and subscription per language, or solve it properly.

Properly, for us, means one central Klaviyo account in which every customer automatically carries their language. We sync the language from Shopify to Klaviyo as a profile attribute, create a newsletter list per language (so double-opt-in mails and unsubscribe pages are genuinely translated) and segment flows so the welcome flow starts in Italian when the customer ordered in Italian.

Technically, we work with Shopify marketing automations directly against the Klaviyo API: no extra tool, no middleware, no additional monthly bill. This is exactly the kind of solution we mean when we say we come from the technical side.

Klaviyo in the overall system: every layer does its job

We think of shops as systems: Shopify is the commerce layer, the ERP stays the ERP, and Klaviyo is the marketing and CRM layer. Each layer does what it does best, and data flows cleanly in between. That is why, for us, the Klaviyo integration is an architecture decision, not a marketing budget item: a flow is only as smart as the events feeding it.

In practice, that means order and customer data comes consistently from Shopify, retail or ERP data docks where it belongs, and Klaviyo receives exactly the profiles and events that make segmentation valuable. We show how we build such integrations in our apps and integrations work.