# Booking-based access

## **Booking-based access basics**

You can allow access to a meeting room based on bookings in that room’s calendar. This feature currently supports Microsoft 365 room resource calendars.

With booking-based access, a room still has an access schedule (see [Setting access](https://docs.accessia.com/setting-access/access-schedule-basics)) but the schedule is overridden when there is a booking, allowing access only to users on the booking invite.

Users and groups in **Access when locked or booked** section of the access schedule retain access during a booking.

## **Set up booking-based access**

Accessia can read bookings from a Microsoft 365 room calendar.

1. Make sure the Microsoft Entra ID integration is set up
   1. Booking-based access specifically requires the Microsoft Graph Application Permissions for *Calendars.Read* and *Place.Read.All*
2. In Accessia, under **Site setup**, click the meeting room that you want to apply booking-based to
3. Go to the **Integrations** tab
4. Click the edit pencil to select the name of the corresponding meeting room from Microsoft

<figure><img src="https://2342891891-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FuMd7lBmzphTj1fejUyiU%2Fuploads%2FJHMrrOTlYb9XeA2QzK10%2Fimage%20(14).png?alt=media&#x26;token=935cb1c1-ed45-45df-beb5-797481a800c3" alt="" width="375"><figcaption></figcaption></figure>