Microsoft Dynamics 365 Portal External Users Access

Hey Everyone,


I have encountered a situation when a new portal user is  invited  and the user is unable to login into the Microsoft Dynamics 365 Portal..

Let's look into the situation with an example, let's get's started..

Suppose there is  cosmo.com tenant   and gmr.com tenant,  if  gmr.com tenant want to access the Cosmo tenant portal then the user getting an error message that the user can't access the portal due to
identity provider.. does not exist in Azure AD,


Error will be "the account needs to be added as an external user in the tenant first , sign out and sign in again with a different Azure Active Directory user account.

The issue will be in the Azure System, Guest user permissions are limited to NO, also follow the below screen for configuration..



In the Management Portal, Limit Guest Access to "No".


 

This will resolve the issue and new portal user invited will be able to login successfully into Microsoft Portal.

I hope this helps.