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Dynamics 365 Community / Forums / Small and medium business | Business Central, N... / Access to multiple Bus...
Small and medium business | Business Central, N...
Suggested Answer

Access to multiple Business Central tenants using a single Entra ID account

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Posted on by AD-11010952-0 4
Hi,
We are currently running Microsoft Dynamics 365 Business Central in Tenant A.
We have recently acquired a company in another country that is also using Business Central, that is in a separate tenant (Tenant B).
 
Our current plan is not to migrate Tenant B Business Central into Tenant A , but instead keep Tenant B as a separate tenant and treat it as a resource tenant.
 
We have already configured Microsoft Entra ID cross-tenant access, where selected users from Tenant A are added as members in Tenant B.
 
We would like to understand the following from a Business Central perspective:
  • Is it possible for our finance users to access both Business Central tenants using a single Entra ID account (e.g. user@company1.com in Tenant A)?
  • If yes, how does the user experience work in practice:
    • How do users switch between the two Business Central tenants?
    • Is switching done via the Business Central environment selector, direct URLs, or sign-out/sign-in?
  • Are there any limitations or best-practice recommendations when running Business Central in this setup?
Categories:
Dynamics 365 Business Central
Dynamics 365 Business Central migration
I have the same question (0)
  • Suggested answer
    Pallavi Phade Profile Picture
    Pallavi Phade 4,472 on at
     
    If you have given access to user in multi-tenants , Tenant Id will change in url . Lets say for example i m given access to 3 environement under 1 tenant URl will be same and i can easily switch to any of environement . 
     
     
     
    Tenant Id will change , if you give access to users to other Tenant then URL will also change . They have to open two tabs .
     
     
    Hope this answered your query
     
     
    Warm Regards
    Pallavi Phade 
    www.linkedin.com/in/pallaviphade131116
  • Suggested answer
    Dhiren Nagar Profile Picture
    Dhiren Nagar 428 on at
    Hi,
     
    Yes as mentioned by you, your users can access both tenants once you have included Tenant A users in Tenant B as guest users and assigned licenses. I think this you already have done. If not just invite Tenant A users in Tenant B as guest users and then assign them license to business central.
     
    Regarding user experience, well you have to manage it with URL, by default when users from Tenant A will login it will open Tenant A Business Central only. But if they use specific url i.e. businesscentral.dynamics.com/tenantid/environmentname, in that case Tenant B will open. This is the best you can get with multi tenant access. Other experts in community may add to this information.
     
    As regards to best practice, its the cost benefit analysis you need to do between acquiring additional licenses for Tenant A users in Tenant B or migrating Tenant B production into Tenant A where 2nd production will be billed (As per Microsoft documentation additional production is billed).
    Another factor to consider is use of other Microsoft services like outlook, teams, excel. So if you are also using it, and Tenant B is separate legal entity with its own domain you may need to keep two tenants separate. Another thing to consider is Domain.
     
    I hope this helps.
     
    Regards,
    Dhiren.
     
     

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