Bi-Directional sync across two or more Zoho subscriptions

Bi-Directional sync across two or more Zoho subscriptions

I am working toward the Glorious State of having a single-source-of-truth for my calendar management.

My client uses a Zoho One subscription.

I use a Zoho One subscription. I use Bookings in this subscription.

In each account, I subscribe to the calendar in the other account. This is sufficient except that my personal Bookings calendar does not know about the subscribed client calendar.

Is there any work-around that enables my personal Bookings calendar to read a Subscribed Calendar?

Thanks,

Ken