How to Use Yammer Without Exchange Online in Microsoft 365
Question details
The user needs to know if Yammer can operate in a commercial Microsoft 365 tenant without an active Exchange Online license.
- Product
- Microsoft Yammer (Viva Engage)
- Device & OS
- not provided
- Scenario
- Deploying Yammer across an organization using a separate commercial Microsoft 365 tenant.
- Observed behavior
- Seeking clarification on whether Yammer has a strict dependency on Exchange Online or if it can be licensed independently.
Ensure you have global administrator or billing administrator permissions in your Microsoft 365 admin center to view and assign subscription licenses.
Verify and Assign Yammer-Eligible Licenses
Confirm that your organization holds Microsoft 365 or Office 365 subscriptions that include Yammer, and assign them to users without enabling Exchange Online.
Yammer (now Viva Engage) can operate entirely independently of Exchange Online. A user does not need an Exchange mailbox to access the platform, provided their assigned Microsoft 365 or Office 365 subscription explicitly includes the Yammer service.
While core functionality remains intact, be aware that without Exchange Online, users will not receive email notifications for Yammer activities and may lack some unified profile syncing features.
Navigate to the Microsoft 365 Admin Center and log in with your administrative credentials.
Go to 'Billing' and select 'Licenses' to review your organization's active plans. Look for eligible enterprise or frontline plans such as Microsoft 365 F1, F3, E3, or E5.
Navigate to 'Users' > 'Active users', select the user you want to configure, and click on the 'Licenses and apps' tab.
Expand the 'Apps' section for the assigned license. Ensure the 'Yammer' (or 'Viva Engage') checkbox is checked, while leaving the 'Exchange Online' checkbox unchecked, then save your changes.
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Frequently Asked Questions
Will users without Exchange Online receive Yammer email notifications?
No. Without an active Exchange Online mailbox, users cannot receive standard email digests or notifications from Yammer. They will need to log into the Yammer web interface or use the mobile app to check for updates.
Which Microsoft 365 plans include Yammer by default?
Yammer is included in most commercial enterprise and frontline worker plans, including Microsoft 365 F1, F3, E3, and E5, as well as Office 365 E1, E3, and E5.
Do guest users need an Exchange Online license to access our Yammer network?
No, external guest users invited to your Yammer network do not require any Microsoft 365 licenses (including Exchange Online or Yammer) in your tenant to participate.
What happens to a user's Yammer account if their Exchange Online license is removed?
The user will still be able to log in and participate in Yammer communities as long as their Yammer service plan remains assigned. However, any calendar integrations or email-based alerts tied to Exchange will immediately stop functioning.
