Prerequisites

• DSM 6.2 or above

• Compatible Synology NAS model

• Synology Account for activation

• Microsoft 365 admin access

Check NAS compatibility:
Synology Compatibility List

Activate Package

1. Open AB4M365 → Click Activate

2. Sign in with your Synology Account

3. Agree to Terms & Conditions

Create a Backup Task

1. Go to Task List → Click Create

2. Choose Microsoft 365 Endpoint

3. Upload certificate & set password

4. Authorise using Microsoft login

5. Configure:

   • Task Name

   • Backup Destination

   • Users/Groups/Sites/Teams to include

   • (Optional) Enable Self-Service Portal

6. Set Auto-discovery options

7. Choose Backup Policy:

   • Continuous (every 1–10 mins, dynamic)

   • Scheduled (user-defined time)

   • Manual

8. Choose Retention Policy:

   • Keep all versions

   • Keep versions for specified days

9. Review Summary → Click Apply

Manage Backup Tasks

• Access via Task List

• Actions:

  • Edit backup target / policies

  • Enable/Disable Auto-discovery

  • Modify Azure AD application

  • Delete specific user/group/site/team data under Storage Management

View Logs

• Go to Log tab

• Use filters: Keyword, Type, or Date

• View restore activities and errors

• Click ▸ icon for log detail (Status, Restore Info)

Restore via Self-Service Portal

Enable Portal Access

Admin:

• Control Panel > Login Portal > Applications > Active Backup for Microsoft 365 Portal

Users:

• Click Active Backup for Microsoft 365 Portal on the DSM main menu.

Restore Steps

1. View Role – Choose user/site

2. Task – Select backup task

3. Service – Choose:

   • Drives

   • Mails

   • Contacts

   • Calendars

   • Sites

   • Teams

4. Date/Version – Use timeline or calendar

5. Actions:

   • Restore to original tenant

   • Export to local machine

Teams Backup Coverage

• SharePoint Team Sites + Subsites

• Files (channel/chat uploads)

• Wiki tab

• OneNote notebooks

• Teams messages

Detailed instructions: https://kb.synology.com/en-uk/DSM/tutorial/Quick_Start_Active_Backup_for_Microsoft_365