DivisibleRooms
You've been asking how. Here's the answer.
Your conference room can open into a larger suite, but Outlook and Exchange have no built-in way to book that dependency. Book the big space. The small rooms don't know to block. Book a small room instead, and the suite doesn't know it's unavailable.
This isn't a one-off complaint. Versions of this exact question have come up across IT and Exchange communities for over a decade, and the answer has consistently been the same: there's no native way to define that a suite depends on its member rooms.
To be clear about scope: if your rooms already merge automatically at the AV level, hardware, partition sensors, whatever handles that, this isn't about that. That side already works. The gap is the booking logic: Exchange has no way to express "if the suite is booked, the member rooms are blocked, and vice versa."
Want the receipts? Read the verified threads this page is built on →
DivisibleRooms is an Outlook add-in. A user picks the named suite ("The Boardroom Suite") directly from the compose window. The system takes it from there.
- Checks availability across every room in the suite before showing it as bookable
- Writes the member room bookings directly to Exchange, as first-class Exchange events
- Places a transition window around the booking, protecting the time needed to physically reconfigure the space
- Updates or removes that transition window automatically if the meeting is rescheduled or cancelled
Because the writes go directly to Exchange rather than through a separate sync layer, Microsoft Teams Rooms panels on each physical room reflect suite bookings and transition windows correctly, with no extra configuration.
Most organizations handle this manually today. Someone books the suite and has to remember to separately block the member rooms by hand. Or an admin sets up Exchange Transport Rules that don't reliably hold up in practice. Or a MailTip reminds staff to book two rooms themselves and hopes they read it. All of these depend on a person not forgetting a step. DivisibleRooms removes the step.
A first-year discount, for people who've been asking about this the longest
If a search or a forum reply brought you here, we'd like to make it easy to try DivisibleRooms.
Applies to year one only; it doesn't change your renewal rate. No code needed, just mention this page when you reach out. The one thing we ask in return: after your first six months using DivisibleRooms, we'd appreciate a short testimonial about how it's working for you. No obligation, and it doesn't affect the discount either way.
See how suite booking works in your own tenant.
Reach out and mention this page. We'll take it from there.
Request a demo