Cross-tenant Synchronisation & Multi-tenant Organisation
The question it answers: Which other tenants can create users in this directory or redeem invitations automatically?
Cross-tenant synchronisation lets another tenant’s admins create and update users in your directory, and automatic redemption suppresses the consent prompt. That is by design for mergers and multi-tenant organisations, and a quiet backdoor if nobody remembers it. Cross-tenant Access covers B2B trust; this report covers identity sync.
At a glance
Section titled “At a glance”| Where in the app | Entra ID › Identity Configuration › Cross-tenant Sync & MTO |
| Workload | Entra ID |
| Kind | Findings list · dashboard tile |
| Data | Read from Microsoft 365 when someone first opens it, then kept for the report cache lifetime (Settings > Data & cache, 1 hour unless changed). |
| Licence | Microsoft Entra ID P1. |
| Report id (API and MCP) | entra.configuration.cross-tenant-sync |
Columns
Section titled “Columns”| Column | Key | Type |
|---|---|---|
| Severity | Severity | Status |
| Relationship | Category | Text |
| Tenant | Subject | Link |
| Check | Setting | Text |
| Sync / redemption | Value | Text |
| Finding | Finding | Text |
| Tenant id | Detail | Text |
| Date | When | Date |
| Count | Number | Number |
A findings list hides columns that no row fills. Severity is Critical, Serious, Warning, OK or Info; rows rated Critical, Serious or Warning need attention (Working with findings).
What it needs
Section titled “What it needs”Licence: Microsoft Entra ID P1.
Application permissions on the IntensiveReports app registration (all permissions):
| Permission | API | What it allows | Note |
|---|---|---|---|
Policy.Read.All | Microsoft Graph | Read your organization’s policies | |
MultiTenantOrganization.Read.All | Microsoft Graph | Read all multi-tenant organization details and tenants | |
CrossTenantInformation.ReadBasic.All | Microsoft Graph | Read cross-tenant basic information | tenant names, optional |
Data sources it reads
GET /v1.0/policies/crossTenantAccessPolicy/partnersGET .../partners/{tenantId}/identitySynchronization ($batch)GET /v1.0/tenantRelationships/multiTenantOrganization/tenantsGET /v1.0/tenantRelationships/findTenantInformationByTenantId
Through the API and MCP
Section titled “Through the API and MCP”GET /ir-api/v1/reports/entra.configuration.cross-tenant-sync?size=100An AI assistant reads it with the MCP tool get_report and the id entra.configuration.cross-tenant-sync. The client needs the Read grant for Entra ID. See Using the API.