Skip to main content

[v10] Supported Services for Microsoft 365

August 4, 2026
Microsoft 365

Here are the supported services of Microsoft 365 backup module. It is also specified in the table some services that are currently not yet supported by the Microsoft 365 backup module.

Services Supported
Outlook ✔
OneDrive ✔
Personal Site ✔
Site Collections ✔
Microsoft Teams ✔
Viva Engage ✖
Microsoft Stream ✖
Power BI ✖
Power Apps ✖
Outlook Mailbox

Below are the supported Outlook Mailbox types of Microsoft 365 Backup.

Item Supported
Archive Mailbox ✖
Dynamic Distribution Group ✖
Microsoft 365 Group ✖
Public Folder Mailbox ✖
Security Group ✖
User Mailbox ✔
Distribution Group ✖
Equipment Mailbox ✔
Public Folder ✖
Room Mailbox ✔
Shared Mailbox ✔
  1. For backing up Shared Mailbox on AhsayACB, it is required to set a password on the Shared Mailbox on Microsoft 365 portal, such that it can be logged in on AhsayACB to create backup sets.
  2. For backing up Public Folder, a licensed Exchange Administrator or a licensed user with Public Folder permission is required.
Folder Level

Below are the items on a folder level that you can back up or restore from an Outlook mailbox.

Item Supported
Archive ✖
Clutter ✔
Contacts ✔
Deleted Items ✔
External Contacts ✖
Inbox ✔
Junk Emails ✔
Organizational Contacts ✖
PeopleCentricConversation Buddies ✖
Recipient Cache ✖
Search Folders ✖
Social Activity Notifications ✖
Tasks ✔
Calendar ✔
Companies ✖
Conversation History ✖
Drafts ✔
GAL Contacts ✖
Journal ✖
Notes ✔
Outbox ✖
PersonMetaData ✖
RSS Feeds ✔
Sent Items ✔
Sync Issues ✖
Trash ✔
AhsayOBM supports folder types which are shown in the Outlook Web Access (OWA), except the Conversation History because it is not related to mail objects.
OneDrive

Below are the items that you can back up or restore from OneDrive.

Item Supported
Folders ✔
Access Permissions ✔
Recycle Bin ✖
Files ✔
Albums ✖
Tag ✖
Teams Chat / Channel

Below are the items that you can back up or restore from Teams Chat / Channel.

Item Supported
Attachments ✔
Chat & Channel Message ✔
Mentions ✔
Public & Private Channel ✔
Voice Message (created via mobile app) ✖
Channel Replies ✔
Loop List (fluid) ✖
One-on-one & Group Chat ✔
Reactions ✔
AhsayOBM supports back up and restore of attachments from OneDrive/Group Site only when it is selected in the backup source.
Site Collections / Personal Site

Below are the Site Collections/Personal Site items that you can back up or restore from a Microsoft 365 backup set.

Item Supported
Announcements ✔
Bright Banner ✔
Contacts ✔
Data Connection Libraries ✔
External Lists ✖
General Settings ✔1
Issue Tracking ✔
Look and Feel ✖
Newsfeed ✖
Picture and Libraries ✔
Site Collection Features ✖
Survey ✔
Wiki / Page Libraries ✔
Asset Libraries ✔
Calendar ✔
Custom Lists ✔
Discussion Boards ✔
Form Libraries ✔
Import Spreadsheets ✔
Links ✔
Manage Site Features ✖
Permissions and Management ✔2
Report Libraries ✔
Site Page ✔
Version History ✔2

1 For the General Settings, only the List Name can be restored.

2 For the Version History and Permissions and Management, the backup and restore are supported for OneDrive files and SharePoint documents (Document Library) only.

SharePoint Site Level Collection

Below are the SharePoint Site Collections template that you can back up or restore from a Microsoft 365 backup set.

Item Supported
Team Site ✔
Blog ✔
Developer Site ✔
Document Center ✔
Records Center ✔
Compliance Policy Center ✔
Community Portal ✔
Visio Process Repository ✔
Publishing Portal ✔
Modern Team Sites ✔
Team Site (Classic Experience) ✔
Project Site ✔
Community Site ✔
eDiscovery Center ✔
Business Intelligence Center ✔
Enterprise Search Center ✔
Basic Search Center ✔
Enterprise Wiki ✔
Modern Communication Site ✔
Site Column Type

Below are the Site Column Type that you can back up or restore from a Microsoft 365 backup set.

Item Supported
CalendarFolderType ✔
ContactItemType ✔
DistributionListType ✔
MeetingCancellationMessageType ✔
MeetingRequestMessageType ✔
MessageType ✔
SearchFolderType ✔
TaskType ✔
CalendarItemType ✔
ContactFolderType ✔
FolderType ✔
MeetingMessageType ✔
MeetingResponseMessageType ✔
PostItemType ✔
TasksFolderType ✔
UserConfigurationType ✔
Maximum Supported File Size

The following table shows the maximum supported file size per item for back up and restore of each service.

Service Maximum File Size

Outlook

with or without attachments (applies to User mailbox, Room mailbox, Shared mailbox, Equipment mailbox)

150 MB
OneDrive 8 GB
Personal Site 8 GB
Site Collections 8 GB