Hi everyone,
I'm trying to display a Klaviyo featured reviews carousel on my WooCommerce website using the Klaviyo shortcode, but the carousel is not showing after adding the required code snippet to my functions.php file.
The shortcode appears on the page as blank/no output, even though:
- Klaviyo Reviews is connected properly
- Reviews are synced and visible in Klaviyo
- The shortcode is added correctly on the page
- No PHP errors appear on the frontend
- Cache has been cleared
- Reviews have been selected as featured on klaviyo
I added the recommended snippet to functions.php, but the featured reviews carousel still does not render on the home page.
Current setup:
- WordPress + WooCommerce
- Theme: Astra
- Using Gutenberg editor
- Klaviyo Reviews enabled
Has anyone experienced this before or knows if:
- the shortcode requires additional hooks/scripts,
- there’s a conflict with WooCommerce templates,
- or if the carousel only works with certain placement methods?
Any help would be appreciated.

