---
title: "Compatible calendar platforms"
canonical: "https://docs.cuesystem.com/space/TOSR/267453508/Compatible%20calendar%20platforms"
format: markdown
---
The CUE System cooperates with the following servers or services where the room calendars are saved:

- **Microsoft 365** subscription (any Business, Education, Enterprise or Government plan with Exchange Online service and with support of resource/room mailboxes; home and personal plans are not supported).
- **Microsoft Exchange Server** 2016, 2019.
- **Google Workspace**, formerly G Suite or Google Apps for Work, subscription (Google Apps Free edition, also known as Standard edition, is not supported).
- **IceWarp** server using the internet standard CalDAV.
- **Zimbra **using the internet standard CalDAV.
- **Kerio Connect **using the internet standard CalDAV.

It is therefore also possible to use the default applications of these services to make a reservation of a room (Outlook, web interface, mobile applications).

For compatibility of calendar servers with available administration methods, see [here](https://cue.atlassian.net/wiki/spaces/TOSR/pages/476807374).