Klaviyo HTML email templates, checked before they land

What lands in Klaviyo

Publish creates a Klaviyo code template for each language you select. You find it in Templates in Klaviyo, ready to use in a campaign or a flow email. Names follow a pattern such as {Template}_{LOCALE}, so October_update becomes October_update_EN and October_update_DE. You can rename each one in the dialog.

Pushing again updates the template with the same name instead of adding a copy. Connecting takes a Klaviyo private API key. Sending, lists and scheduling stay in Klaviyo.

Checked against Klaviyo before the push

Once Klaviyo is your active ESP, the email template checker reads every language with Klaviyo’s syntax in mind. A missing unsubscribe tag is a blocker, not a footnote.

Unsubscribe tag

Looks for {% unsubscribe %} or {% unsubscribe_link %}. Missing means a blocker. Present but hidden or tiny is flagged as high risk.

Merge tags

Klaviyo tags such as {{ first_name }} are left alone. A tag written for a different ESP is flagged, because Klaviyo would print it as text.

Dead links

Every link is requested. Klaviyo click-tracking links (klclick.com) are skipped, so tracking does not show up as a false 404.

Leftover tokens

A {{locale.*}} or {{theme.*}} token that did not resolve is a blocker. It would reach Klaviyo as raw text.

One HTML file, one Klaviyo template per language

The layout lives in one Shared HTML file. Copy, links, images and the subject change per language through {{locale.key}} tokens, edited in a grid or imported from Excel. That workflow has its own page: HTML email localization.

Compile turns each language into plain HTML. Publish then sends each one to Klaviyo as its own template. Fixing a link in the shared file fixes it in every language on the next push.

A code template, so Klaviyo keeps your HTML

The push creates a template in Klaviyo’s code editor, not in the drag-and-drop editor. Klaviyo does not rebuild your layout into its own blocks.

Klaviyo tags such as {{ first_name }}, {% if %} blocks and {% unsubscribe %} pass through Compile untouched. Klaviyo fills them for each profile when the email sends.