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What Happens When Downgrading an Exchange Online E3 License?
Question details
The user wants to know the implications of downgrading their Exchange Online E3 license to a lower-tier plan, specifically regarding existing data, mailbox quotas, and OneDrive limits.
- Product
- Exchange Online / Microsoft 365
- Device & OS
- not provided
- Scenario
- Downgrading a Microsoft 365 subscription plan from E3 to a plan with smaller storage quotas.
- Observed behavior
- Existing data is not immediately deleted, but account functions such as sending or receiving emails are restricted if the current data usage exceeds the new plan's limits.
Before downgrading your license, check your current mailbox and OneDrive storage usage in the Microsoft 365 admin center to ensure it falls within the limits of the new plan.
Manage Your Data Before Downgrading the License
Taking proactive steps to clear out excess data ensures your email and OneDrive services remain uninterrupted after the license downgrade.
When you downgrade from an Exchange Online E3 license to a lower plan, Microsoft does not automatically delete your older messages to fit the new quota. Instead, if your current storage exceeds the new limits, your account will be temporarily restricted.
You may be unable to send or receive new emails, and adding new files to OneDrive will be blocked until the storage is manually reduced below the new limit.
Log into your Microsoft 365 admin center or Outlook web settings to check your current mailbox and OneDrive storage levels against the limits of your proposed new plan.
Manually delete unnecessary emails, empty your deleted items folder, and back up large OneDrive files locally to bring your total usage below the new plan's quota.
Confirm with your IT administrator or Microsoft Support regarding specific grace periods and data deletion terms before officially processing the downgrade.
Save More on Subscriptions with WPS Office
If you are downgrading your Microsoft 365 plans to save on licensing costs, consider switching to WPS Office for your daily document needs. It offers a powerful, lightweight, and free alternative with high compatibility.
- 1. Download the software: Visit the official WPS website and download the free WPS Office installer for your operating system.
- 2. Install and launch: Run the installer, follow the on-screen prompts, and launch the application.
- 3. Open existing Office files: Directly open your existing .docx, .xlsx, and .pptx files in WPS Office without losing any formatting or data.
Frequently Asked Questions
Will I lose my emails if I downgrade my Exchange Online license?
No, your existing emails are not immediately deleted. However, if your mailbox size exceeds the new storage limit, your ability to send or receive new emails will be suspended until you delete or archive older messages to get below the quota.
Does downgrading an E3 license affect my OneDrive storage?
Yes, downgrading from an E3 license often reduces your OneDrive storage quota significantly (e.g., from 1TB or 5TB down to a lower limit). You will need to ensure your data usage is under the new limit to continue uploading or syncing new files.
How long is the grace period to reduce data after a downgrade?
Microsoft typically implements a temporary grace period, but specific terms can vary based on your exact subscription and volume licensing agreement. It is strongly advised to check with your administrator or Microsoft Support before the downgrade.
