It's possible for hybrid environments to support multiple UPNs for their users. The email address of the user who signed up to the Patch My PC Cloud might differ from other users within the organisation who would also want to sign into the same company of Patch My PC Cloud.
At this time it's not possible for Patch My PC to associate multiple domains with a single Patch My PC (cloud) company, nor change the primary domain used to sign up with.
This can be a tricky experience when new users request access to the company but they're using a different email domain. In this situation the administrator of the Patch My PC cloud company does not see the requests.
This feature request is for the ability to manage domain association and add multiple domains.