japanese translation

Hello,

Actually they have an article about how to add a translation to the plugin:
https://yithemes.com/docs-plugins/yith-woocommerce-multi-step-checkout/05-localization.html

Hi @miccweb,

thanks for your reporting. If you send the translation file to us we add it in next plugin release.

Thanks for your reporting.
Have a nice day
YITH