Problem adding external AAD user to a directory backed VSTS instance
Background I recently decided to change one of my VSTS instance to be directory backed. What this means is that in the past users logged in using LiveIDs (MSAs by their new name); once the VSTS instance was linked to an Azure Active Directory (AAD), via the Azure portal, they could login only if they were using an account in the AAD their MSA was listed as a guest in the AAD they used a work ID in another AAD that is listed as a guest in my AAD Thus giving me centralised user management. ...