'%3e%3cpath%20d='M8%200C12.4183%200%2016%203.58172%2016%208C16%2012.4183%2012.4183%2016%208%2016C3.58172%2016%200%2012.4183%200%208C0%203.58172%203.58172%200%208%200ZM11.6162%204.38379C11.2257%203.99337%2010.5927%203.99338%2010.2021%204.38379L8%206.58594L5.79785%204.38379C5.40732%203.99334%204.77429%203.99329%204.38379%204.38379C3.99331%204.77429%203.99335%205.40733%204.38379%205.79785L6.58594%208L4.38379%2010.2021C3.99348%2010.5927%203.99341%2011.2257%204.38379%2011.6162C4.77426%2012.0066%205.40734%2012.0065%205.79785%2011.6162L8%209.41406L10.2021%2011.6162C10.5927%2012.0066%2011.2257%2012.0067%2011.6162%2011.6162C12.0067%2011.2257%2012.0066%2010.5927%2011.6162%2010.2021L9.41406%208L11.6162%205.79785C12.0066%205.40735%2012.0066%204.77429%2011.6162%204.38379Z'%20fill='%23080E17'%20fill-opacity='0.46'/%3e%3c/g%3e%3cdefs%3e%3cclipPath%20id='clip0_3761_713'%3e%3crect%20width='16'%20height='16'%20fill='white'/%3e%3c/clipPath%3e%3c/defs%3e%3c/svg%3e)
How to Provision Additional Archive Storage for Large Microsoft 365 Mailboxes
Question details
Administrators need to immediately provision 200 GB of archive storage for Microsoft 365 mailboxes to prevent migration failures caused by full existing archives.
- Product
- Microsoft 365 / Exchange Online
- Device & OS
- not provided
- Scenario
- Migrating large mailboxes where the target destination requires significantly more archive capacity.
- Observed behavior
- Mailbox migrations fail because the existing archive is full, and administrators are unable to force an immediate 200 GB expansion of the archive capacity.
Ensure you have Exchange Administrator permissions and that the Exchange Online PowerShell module is installed. Please note that archiving expansion is an incremental process and cannot be forced immediately.
Enable Auto-Expanding Archiving via Exchange Online PowerShell
Use Exchange Online PowerShell to turn on auto-expanding archiving, allowing the mailbox archive to grow up to 1.5 TB incrementally as more space is needed.
Microsoft 365 supports auto-expanding archiving, which automatically provisions additional storage when a user's archive mailbox nears its capacity limit.
It is important to note that there is no supported command to force an immediate expansion. The provisioning of additional capacity is incremental and can take up to 30 days to complete after being triggered.
Open PowerShell as an administrator and connect to your Exchange Online tenant using your administrator credentials.
Execute the command 'Set-OrganizationConfig -AutoExpandingArchive' to enable auto-expanding archiving for the entire organization.
Monitor the archive mailbox over the following weeks. Additional storage will be provisioned automatically but may take up to 30 days to become fully available.
Need a lightweight office suite while managing your organization? Try WPS Office
While you wait for Microsoft 365 to incrementally expand mailbox archives, empower your team with a lightweight, highly compatible alternative for document creation and editing. WPS Office offers excellent compatibility with Word, Excel, and PowerPoint files without the heavy overhead.
- 1. Download WPS Office: Visit the official WPS website and download the client for your operating system.
- 2. Install the Suite: Run the setup file and follow the straightforward on-screen instructions to install.
- 3. Start Creating: Open WPS Office and instantly view, edit, or create your Office documents.
Frequently Asked Questions
Can I instantly add 200 GB of archive storage to a Microsoft 365 mailbox?
No, there is no supported command to force immediate archive expansion. The auto-expanding archiving feature provisions space incrementally, which can take up to 30 days.
What is the maximum archive storage limit with auto-expanding archiving enabled?
When auto-expanding archiving is turned on, a user's archive mailbox can incrementally grow to a maximum capacity of 1.5 TB.
Can I enable auto-expanding archiving for specific users instead of the whole organization?
Yes, you can enable it for a specific user by running the command 'Enable-Mailbox <User> -AutoExpandingArchive' in Exchange Online PowerShell.
