Implement DKE B2B scenarios - Microsoft Tech Community
Most customers implementing DKE are trying to limit access to their most sensitive content to users of their own tenant. But some customers asked how DKE can also be used for B2B scenarios. This blog shows the additional steps for allowing Contoso to share DKE protected content with Fabrikam users.
Please observe that this blog post does not replace the official documentation for implementing DKE, it merely describes the additional steps required.