Thomas, we're aware of the kinks and are working hard to streamline the process. In the meantime, please know the email address to which an invite is sent does NOT have to be the email address associated with the account connected in My Esri. You can definitely send invites to corporate email addresses. The user who receives the email decides which Esri account to login with after clicking the token in the invite. If you want everyone to use a specific account for e-Learning access, you can add a note to the invite with instructions. An ArcGIS Online Organizational account can be connected in My Esri, but then the ArcGIS Online administrator will need to enable Esri access for that individual in ArcGIS Online (this is in addition to the user's account being connected in My Esri). If the individual is later removed from the ArcGIS Online Organization, the administrator would need to NOT disable Esri access prior to removing them...because if that happens, the individual becomes locked out of their account and we cannot transfer their training history to a new account for them. Also, only named users will have ArcGIS Online Organizational accounts...e-Learning access is available to everyone in your organization, not just named users. Hope this clears things up a bit.
