Cross-Tenant Synchronization for seamless application access is now generally available!
Published May 30 2023 09:00 AM 177K Views

Hello Everyone,  

Today I'm thrilled to announce that Cross-tenant synchronization is generally available!   


In the past, many of you spent significant time and money building custom scripts to provision accounts across tenants and enable cross-tenant collaboration. Since we launched public preview of cross-tenant sync in January, many of you quickly switched to the out of the box functionality and saved your companies both time and money. It’s amazing to hear how easy it has been to deploy cross-tenant synchronization! The rich feedback has provided new use cases we’re excited to share:    


  • Providing application access to users from other tenants in your organization
  • Creating a unified global address list across tenants in an organization
  • Enabling collaboration with users from another tenant in your organization 


Customers, such as Siemens AG, are already sharing their positive experience:


"Cross-tenant synchronization and Cross-tenant access are two critical components in our Zero Trust approach here at Siemens. We currently bring in over 85000 employees from affiliate Siemens tenants and enable them to log on to central applications in our tenant while also processing Zero Trust signals. We synchronize employees from these tenants, make them visible in the address book, and provision both standard Azure AD and Siemens custom attributes. This approach not only leads to increased usability and convenience for our partners and application owners, but we also enjoy additional security benefits, for example from the HR lifecycle processes of our Siemens partners."  
-Bastian Schüler and Philipp Bergmann, Identity Architects, Siemens AG 


One of the key scenarios we’ve heard from customers is around application access so let’s walk through an example scenario where a multi-tenant organization, Contoso, provided birthright access to a manufacturing application:   



Cross-tenant app access in three stepsCross-tenant app access in three steps


Enable Cross-tenant application access in three easy steps 


In this scenario, a multi-tenant organization, Contoso, provides users across the organization access to a manufacturing application:   


Step 1 – Turn on Cross-tenant synchronization. 

Last year, the admin at Contoso EMEA enabled a Cross-tenant access setting to trust MFA from Contoso APAC. Now when they return to the Cross-tenant access settings experience in Azure Active Directory (Azure AD), there’s a new checkbox to enable Cross-tenant synchronization and auto-redemption. With a click of a checkbox, they’re done setting up Cross-tenant sync!   


Enabling cross-tenant sync through cross-tenant access settingsEnabling cross-tenant sync through cross-tenant access settings


The admin at Contoso APAC then configures Cross-tenant synchronization and specifies:    


  • Which users to synchronize (based on group membership).  
  • What attributes to synchronize (the department attribute will be key to providing application access in this scenario). 
  • Any desired transformations, such as adding the domain to the end of the display name.  


Once the admin at Contoso APAC starts Cross-tenant synchronization, Contoso APAC users are automatically provisioned into the Contoso EMEA tenant. A few Contoso APAC users were manually invited prior to enabling sync, and they’re kept up-to-date according to the rules specified above. The users from Contoso APAC can now be assigned access to applications in the Contoso EMEA tenant.  


Step 2 – Automate application assignment.

The admins at Contoso EMEA have done a great job streamlining application access. When users are provisioned into Contoso EMEA, members of the manufacturing department are automatically assigned access to the manufacturing application through a dynamic access package. The access package grants users in the manufacturing department access to the manufacturing app and other resources, such as roles and SharePoint sites needed to get their work done.


Step 3 – Provision accounts in the manufacturing application.

The manufacturing app is on-premises and requires that users are provisioned before signing in. It doesn’t support modern APIs for user management, but it does have an OpenLDAP directory as a user store. The admins at Contoso EMEA have set up on-premises application provisioning to automate access to the on-premises app. Any user that’s assigned to the manufacturing app through an access package is automatically provisioned into the manufacturing app.


In this example, we can see how Contoso uses the capabilities in Microsoft Entra Identity Governance together to provide access to applications across tenants in an organization. They’re able to automate the process end-to-end and automate providing application access across tenants. In the past, customers have spent months building custom scripts to synchronize accounts across tenants. With the release of cross-tenant sync, customers see value in a matter of minutes, and save on the cost of maintaining those custom scripts. We’re excited to see how you will use these capabilities.   

Go enable Cross-Tenant synchronization today! We love hearing from you, so share your feedback on these new features through the Azure forum or by tagging @AzureAD on Twitter.   


Joseph Dadzie, Partner Director of Product Management 

Linkedin: @joedadzie 

Twitter: @joe_dadzie 



 Learn more about Microsoft identity: 

Version history
Last update:
‎May 30 2023 09:47 AM
Updated by: