A: Hi there,

Thanks for the inquiry!

Yes, our addon packs includes addon support for those two plugins.

https://yaycommerce.com/yaymail-woocommerce-email-customizer/#yaymail-addon-woo-bookings
https://yaycommerce.com/yaymail-woocommerce-email-customizer/#yaymail-addon-yith-booking

Kind regards,
-Bruce-