Klaviyo (WordPress plugin)

Klaviyo does email and SMS marketing. It can integrate with a WooCommerce site through its plugin, also called klaviyo. This article is both about their WordPress plugin. See Klaviyo for the company services.

Plugin licensing

GPLv2+
Gratis.

Plugin installation

wp plugin install klaviyo --activate

Klaviyo doesn't add any WP-CLI commands.

REST API & Legacy REST API

AFAIK (see screenshot below), Klaviyo uses the 'normal' REST API, not the legacy REST API that is about to be removed from WooCommerce around the end of 2023.

Case: WooCommerce-Klaviyo Integration (2022.10)

After establishing a Klaviyo account and installing their WordPress plugin, these two entities try to connect.

The problem

Klaviyo can't connect to a webshop where the plugin has been installed: Unable to access orders API

Possible causes

Some serious cashing happens at this site. Even the DNS entries point to somewhere else (CDN?). Maybe that's a problem?

Additional information & Actions

Site » wp-admin » Plugins » Klaviyo » Setup: It asks for permission to exchange WooCommerce data. Nothing more. This permission originated on the website (so no issues with firewall). Also no issues concerning identificaiton of the Klaviyo account: That isn't even asked for (of course, Klaviyo knows which site connects to which account)
Uninstalled the plugin (which wasn't installed by me): wp plugin deactivate klaviyo; wp plugin uninstall klaviyo and reinstalled it: wp plugin install klaviyo --activate + run the procedure again: No difference
REST API is used for communications. This seems to work fine (see screenshot below)

Yep: Klaviyo uses REST API and credentials seem to have been established

Disable caching: Disabled Object Pro Cache (button dashboard) and WP Rocket (deactivated the plugin): No difference.

Sources

Klaviyo (WordPress plugin)

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