Note: This article is outdated and may not work properly with latest versions of WooCommerce Bookings and WPML. Please check this tutorial instead.
If you do not have bookable products, then everything is ok. WooCommerce is 100% compatible with WPML. But what if you have bookable products such as hotel rooms or appointments?
You need WooCommerce Bookings too.
There are a few tweaks to do before to translate bookable products, or you will not be able to localize product resources.