There is a big issue with the plugin Facebook for WooCommerce. The ID of the products are given a fake ID for content_ids consisting of the product’s SKU and the product ID combined with an underscrore between them, for example SKU123_321, where SKU123 is the SKU and 321 is the product ID. This becomes a problem with data tracking since the fake ID doesn’t really exist on the site.
What this plugin does is, it lets you choose if you want to use the SKU or the product ID to identify your products when syncing to Facebook and Instagram.
The plugin has been submitted to WordPress for review and will be free to use. If you want to start using it right away, you can download it here.