Except for Yoga Marga, Yoga Chikitsa & Isha Pancha Karma, you can enroll in any Isha Health Solutions program without having attended an Isha Yoga program.
Only for Yoga Marga, Yoga Chikitsa & Isha Pancha Karma, it is mandatory to have been initiated into the Shambhavi Mahamudra Kriya, which is currently offered as part of the Isha Yoga or Inner Engineering program. It is required that you practice Shambhavi Mahamudra Kriya for at least two months before applying to these programs.
If you have been initiated into Shambhavi Mahamudra Kriya but have not been practicing, please raise a ticket here https://ishahealthsolutions.ishafoundation.org/support/home for guidance. Please note that in case you have done Inner Engineering Online, you still need to be initiated into Shambhavi Mahamudra Kriya separately.