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YayMail comes with several shortcodes that can be used to insert content inside the email templates.
The shortcodes provided are template specific.
So, as per how it works in each third-party WooCommerce extension, only the information provided in the original email will show in the corresponding email template of YayMail.
In YayMail builder, you have plenty of shortcodes in the list here. Just copy and paste it where you want.
YayMail shortcodes in Shortcodes section
You can see the list of shortcodes here too.
YayMail Shortcodes in editor
When a third party plugin uses WooCommerce order meta to add their information, you can display it in YayMail by going to Shortcode > Order meta.
YayMail Order meta shortcodes