Beitrag von Florin Gruber, Juni 2025

New: Create Microsoft Teams Backup with Backup ONE

Starting August 3, 2020, you can create a Microsoft Teams backup at no additional cost with any Backup ONE server package.

Those who subscribe to Microsoft 365 (formerly Microsoft Office 365) automatically get access to Microsoft Teams. Microsoft's Slack competitor combines chat, meetings (telephony and video), notes, and attachments in one service and is available within the subscription at no additional cost.

Teams is heavily promoted by Microsoft and is steadily gaining popularity. A key advantage is Teams' seamless integration into the Microsoft 365 environment. If your company works with Teams, the question arises: how can you backup all files, notes, pages/wikis, chats, and posts? The answer is simple: every Backup ONE Server package (starting at CHF 39.90/month) includes Microsoft Teams backup functionality.

Backup ONE secures the following elements from Microsoft Teams

  • All channels and their content
  • Files
  • Member list
  • Team mailbox and meetings
  • Team sites

Why should a Teams backup be created?

Microsoft itself recommends its customers to create a backup of all Microsoft 365 services. The following list shows the main reasons for backing up data:

A Microsoft Teams backup protects your company from:

  • Accidental deletion
  • Accidental modification
  • Hackers, ransomware, and malware
  • Malicious deletion
  • Malicious modification
  • Departing employees

How Teams backup works

  1. Log in at https://portal.backup.ch with your credentials
  2. Add a backup source and select Microsoft Teams
  3. Now you can log in with your Teams credentials and grant Backup ONE permission to backup the data
  4. Choose how often the backup should occur and how long the data should be retained (e.g., 5 years)
  5. Done – The backup will now be performed fully automatically. The data is encrypted and stored in our Swiss data centers and can be restored at any time.

Recovery options

  • Entire team
  • Channels: conversations as HTML, files
  • Complete team mailbox or individual items: emails and calendar entries
  • Complete team site or individual items: subsites, lists, document libraries, files
  • Full-text search across all channels is available

Backup ONE's automatic cloud-to-cloud backup regularly downloads Teams data and stores it encrypted on our Swiss servers. Here, the data remains in an immutable form ready for when you need to restore it.

Doesn't Microsoft already make a backup?

Microsoft strives for maximum availability of its services but does not guarantee data backup to customers. For example, if a file in Microsoft Teams or OneDrive is modified, this change is synchronized to all participants. While restoring the original state for individual files may be possible through the revision function (depends on settings), this can prove impossible for entire folders with thousands of files. This is exactly where backup comes in: You have your business-critical data at hand at all times and can restore it directly from the backup (cloud-to-cloud).

How can I set up a Microsoft Teams backup?

If you're already a Backup ONE customer with a server package, the functionality is automatically available to you. As a new customer, you can choose your desired package here and set up your Microsoft Teams backup after ordering.