Block access to Yammer - Viva Engage

UPDATED July 2023 - To prevent access to Yammer, complete the following steps: Remove Office 365 Yammer license, remove Viva Engage Core license and enforce Office 365 identity in Yammer

Block Office 365 users without Yammer licenses

Just removing the Yammer Enterprise license does not disable access to Yammer. You'll also need to remove the Viva Engage Core license and enforce Office 365 identity in Yammer. 

Making all three changes will stop users from being able to access Yammer.

1. Remove Office 365 Yammer license

Microsoft 365 Admin Center
Users - Active users - select user
Licenses and apps - view all apps and services

Yammer Enterprise license: Off

2. Remove Viva Engage Core license

3. Enforce Office 365 identity in Yammer

Yammer - Network Admin - Security Settings

Enforce Office 365 identity
Block Office 365 users without Yammer license

Reference:

Enforce Office 365 identity for Yammer users
https://learn.microsoft.com/en-us/yammer/configure-your-yammer-network/enforce-office-365-identity

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