A Klaviyo agency that knows

where Klaviyo breaks.

No. Klaviyo supports only one integration of any type within a single account and says it isn't optimized to support more than one ecommerce store per instance, so two stores of the same type mean two Klaviyo accounts. Magento is the documented exception: one Magento server with multiple stores syncs together, with store name and website ID properties on each profile to separate flows and segments. We scope that before anything gets connected, because unwinding it afterward is a migration.

Klaviyo's free plan covers up to 250 active profiles, 500 email sends a month and $5 of mobile messages. Paid marketing plans bill on both active profiles and emails sent, and an active profile is anyone you can email regardless of consent status, including checkout emails that never opted in. Mobile messaging is bought as a monthly spend and has been billed at per-message dollar rates since July 13, 2026, with exact rates visible in your account rather than published. Reviews, Advanced Klaviyo Data Platform, Marketing Analytics and Composer are billed separately, and pricing changes, so confirm current numbers in-app.

Different models over different windows. Klaviyo defaults to last touch with its own configurable window per channel, including 5 days for email clicks and 12 hours for text message deliveries, and it reports against the day the message was sent in your account's timezone. A conversion also requires an open or a click before the purchase, so simply receiving a message isn't one. Changing the settings recalculates history and can take up to 36 hours to appear, so we set the windows deliberately, document them, and report the same way every month.

Only where Klaviyo supports it and your consent is clean. Klaviyo's SMS is available in 23 countries, the United States entry covers the 50 states only, and two-way messaging isn't available where a branded sender ID is used, which removes keywords and conversations entirely. Klaviyo advises double opt-in on SMS lists and says carriers often require it. RCS is a bigger decision than a toggle: once an agent is active it becomes the default format for text messages in that country, images aren't copied into your existing flows until you edit each one, and if someone opts out of RCS you can't fall back to SMS for them.

We can fix what's in your control and tell you plainly what isn't. Klaviyo advises every account to set up a branded sending domain and recommends a branded domain with DMARC above 5,000 profiles. It recommends a dedicated IP only for senders consistently above a million emails a month, and notes not every account qualifies, so most accounts do better on shared IPs. Beyond configuration, deliverability comes down to who you send to and how often, which is a list and segmentation problem before it's a technical one.

Shopify is where most of this work lands, and it's the integration Klaviyo documents most thoroughly, including the 15 metrics that sync and the ones that never do. We work on other ecommerce platforms too. Klaviyo Reviews is the one product with a hard requirement: Klaviyo's documentation limits it to Shopify and WooCommerce.

Nothing, and there's no obligation attached. It's a clear look at why your Klaviyo account isn't producing what it should: what's configured, what's silently off, which segments and flows are dead, and what to fix in what order. Not a sales call. Not a quote request.