(Updated) Planner tab support for Shared and Private Channels in Microsoft Teams

🚨 The Signal: Planner tabs are now available in Teams Shared and Private Channels, inheriting channel permissions and compliance. This expands collaboration but requires vigilance over data access and information governance in restricted contexts.

The Impact

Teams users can now add Planner to restricted channels, increasing the risk of unmanaged data sprawl and potential information oversharing if not properly governed.

• Security Teams: Risk of unmanaged data sprawl in SharePoint sites backing shared/private channels.
• Compliance Teams: New data locations for Planner plans may complicate eDiscovery and retention policies.
• Admins: Increased complexity in monitoring and auditing data access for Planner content in restricted channels.
• End Users: Potential for inadvertent sharing of sensitive planning data if channel membership is not strictly controlled.

The Action

1. Review existing Microsoft Teams and SharePoint data governance policies for shared and private channels.
2. Communicate to users the implications of adding Planner tabs to shared/private channels, emphasizing data sensitivity.
3. Monitor Microsoft 365 audit logs for Planner plan creation and access in shared/private channels.
4. Consider implementing sensitivity labels for Teams channels to automatically apply appropriate data governance controls.

Domain: Teams · Impact: medium · Workload: Teams