Microsoft Entra Tenant Governance for Multi-Tenant Security

Introduction

Managing identity across multiple Microsoft Entra tenants has become a major security and operational challenge. As organizations grow through mergers, acquisitions, and decentralized IT, unmanaged or shadow tenants can create serious gaps in MFA, Conditional Access, and privileged access controls.

Microsoft Entra Tenant Governance is designed to address that problem by giving IT and security teams a centralized way to discover related tenants, establish governance, and continuously enforce security standards across their tenant estate.

What’s new in Entra Tenant Governance

Related tenant discovery

Microsoft Entra can now help organizations identify related tenants using risk-informed discovery signals, including:

• B2B access relationships
• Multi-tenant application connections
• Microsoft billing relationships

This gives admins a continuously updated view of tenants that may require governance attention, even if they are not part of a formal inventory.

Governance relationships with delegated administration

Organizations can establish tenant governance relationships between a governing tenant and governed tenants through a request and approval workflow.

Key benefits include:

• Least-privilege delegated administration
• No need for separate local admin accounts in every tenant
• Centralized access management using security groups mapped to built-in Entra roles
• Consistent administration across Microsoft management experiences

Microsoft also notes that delegated access can extend into Defender multi-tenant management scenarios.

Tenant configuration management

Entra Tenant Governance also introduces configuration baselines to help keep settings aligned over time.

Admins can:

• Define a desired-state baseline in JSON
• Cover more than 200 resource types across Microsoft services
• Include settings from Entra, Exchange, Intune, Defender, Purview, and Teams
• Use configuration snapshots from a known-good tenant as a starting point

This helps reduce configuration drift and makes it easier to standardize security and compliance across different tenant types.

Why this matters for IT admins

For Entra administrators and security teams, the biggest advantage is visibility and control. Instead of relying on scripts, manual inventories, or fragmented admin models, organizations can manage multi-tenant environments from a single control plane.

This is especially important where shadow tenants or acquired environments may expose production resources through weak policies or unmanaged apps. Tenant Governance helps teams identify those risks earlier and apply consistent controls without forcing every tenant into the same operational model.

Next steps

• Review your current tenant landscape for merger, acquisition, or shadow IT exposure
• Use related tenant discovery to identify high-risk connected tenants
• Plan governance relationships for centralized, least-privilege administration
• Define configuration baselines for core workloads and monitor for drift

For organizations with a growing multi-tenant footprint, Entra Tenant Governance looks like a significant step toward stronger cross-tenant security and simpler administration.