We have a production Azure account (we currently login to this with Microsoft IDs created using our company email addresses).
We now have Office 365, with all our users added to the Azure Active Directory included with Office 365 - how can we use our Office 365 credentials to login to our existing Azure account? E.g. is there a way to replace the old Azure directory with the new one Office 365 created as part of Office 365?
There seems to be a process to do this using the classic Azure portal, but it's not clear how/if this can be done with the new portal.