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Dynamics 365 Community / Forums / Small and medium business | Business Central, N... / Accessing a Business C...
Small and medium business | Business Central, N...
Answered

Accessing a Business Central tenant from a second tenant

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Posted on by Soda 10
Hi,
We are preparing a large project with 300+ users. During the project we will install Business Central on a separate tenant. 
Is there a way to setup access from the customer's /normal/ tenant where the keep their Entra, Office, Outlook, Teams etc? We would like to avoid having separate users for the extra project tenant.
 
Thanks
Categories:
Dynamics 365 Business Central
Dynamics 365 Business Central
Dynamics 365 Business Central
I have the same question (0)
  • Verified answer
    YUN ZHU Profile Picture
    YUN ZHU 101,202 Super User 2026 Season 1 on at
    It is possible to add external users, but this may cause problems when using Office 365 integration features because it will point to the current user's tenant.
    More details: Dynamics 365 Business Central SaaS: How to add external users (Two ways)
     
     
    Hope this helps.
    Thanks.
    ZHU
  • Soda Profile Picture
    Soda 10 on at
    Thanks ZHU!
    User the guest user addition would then make it possible to setup a user with the external accountant license type. Is there any way to apply an Essential or Premium license to a guest user?
  • Suggested answer
    YUN ZHU Profile Picture
    YUN ZHU 101,202 Super User 2026 Season 1 on at
    Hi, after adding Guset User, you can use the following method to assign a normal BC license. Strictly speaking, this is not an external accountant user.
     
    Hope this helps.
    Thanks.
    ZHU
  • Verified answer
    Aspen Profile Picture
    Aspen 418 on at
    you could assign essential bc license to a guest user or premium license. however, you might not be able to send notifications to a guest user cause their authentication email is not the same as their original email. It's something like guestuser_guestdomain.com#EXT#@mydomain.com. so they won't be able to receive notification email in cases including workflow request approval etc. 
  • Soda Profile Picture
    Soda 10 on at
    Many thanks to both of you ZHU and Aspen!

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