One of my colleagues had a question today… His customer has split their company in two tenants and their Dynamics 365 for Operations was still in one of the tenant (TenantA). The users in the new tenant (TenantB) needed access and he wondered how they could do this.
The first step for doing this is to create an Azure AD guest account invitation in the Azure Portal (In Tenant A). Go to Azure Active Directory – Users – New Guest User.
The user receives an email where they can approve the invite…
When the user in Tenant B accepts the invite a “placeholder account” will be created in TenantA and this account will be linked to the users account in Tenant B. The user can not log in using his account in TenantB but will be treated as a user in TenantB and the security policies from Tenant A (MFA) will be applied. Once the user has accepted the invite we need to import the user in Dynamics. Go to System Administration – Users and select Import User. Search for the user and import it.
Finally we need to ad user roles as usual.