In WordPress / WooCommerce, we set the customizer language depending on the get_bloginfo( 'language' ) function of the core WordPress:
Any translation plugin that sets the language of this function will make it work for Kickflip products.
WPML plugin compatibility
Kickflip is notably compatible with WPML to translate your pages.
To make it work, you need to set up WPML so that it copies the Custom field mczrStartingPoint of your products.
You can do so by going in your WordPress dashboard > WPML Tab Settings > in Custom Fields Translation, search for mczrStartingPoint and set it to Copy, then Save.
Once this is done, the Kickflip product customizers will use the WPML language.
If you already had products created, make sure to save your Kickflip products in the WordPress dashboard so that WPML copies the mczrStartingPoint to the other translations:
