check before: 2026-03-30
Product:
Microsoft 365 admin center, Power Platform
Platform:
Online, World tenant
Status:
Change type:
Links:
Details:
Following customer feedback and support ticket evaluation, we have updated our tenant isolation enforcement policy. Starting March 30, 2026, only new tenants will have tenant isolation enabled by default. Additionally, existing tenants will not have their existing tenant isolation turned on if the option is blank as setup is opt-in.
Change Category:
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Scope:
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Release Phase:
Created:
2026-03-27
updated:
2026-03-27
Task Type
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Docu to Check
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MS How does it affect me
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MS Preperations
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MS Urgency
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MS workload name
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summary for non-techies**
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Direct effects for Operations**
Cross-Tenant Connectivity Issues
Without proper preparation, existing tenants may face disruptions in cross-tenant connections, leading to blocked access to necessary resources and services.
- roles: Power Platform Admin, IT Support Specialist
- references: https://aka.ms/14444Link1, https://aka.ms/14444Link2
User Experience Degradation
Users may experience a lack of access to shared resources and applications across tenants, resulting in frustration and decreased productivity.
- roles: End User, Business Analyst
- references: https://aka.ms/14444Link1, https://aka.ms/14444Link2
Increased Support Tickets
The enforcement of tenant isolation without prior communication may lead to an increase in support tickets as users encounter unexpected access issues.
- roles: IT Support Specialist, Help Desk Technician
- references: https://aka.ms/14444Link1, https://aka.ms/14444Link2
Compliance Risks
Organizations may inadvertently violate compliance requirements if tenant isolation is not configured correctly, leading to potential legal and financial repercussions.
- roles: Compliance Officer, Data Protection Officer
- references: https://aka.ms/14444Link1, https://aka.ms/14444Link2
Operational Disruptions
Changes in tenant isolation settings without preparation can disrupt ongoing projects that rely on cross-tenant collaboration, affecting timelines and deliverables.
- roles: Project Manager, Team Lead
- references: https://aka.ms/14444Link1, https://aka.ms/14444Link2
Configutation Options**
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Opportunities**
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Potentional Risks**
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IT Security**
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explanation for non-techies**
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** AI generated content. This information must be reviewed before use.
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Last updated 3 weeks ago ago
