As we are working our way through the setup of Azure and Office 365 we have discovered an issue with the format of the UPN attribute in Active Directory for some of our users.  We have identified a fix for this; however, modification of this attribute could potentially impact software and applications that use this attribute for authentication. We have discovered Remedyforce-Salesforce is one of the Applications that will have an impact.

Our User logon names from AD was in the following format example : userid.dot.missouri and will now be changing to example : firstname.lastname@company.mo.gov. The things that will be causing us a couple issues  1. that means our username in Salesforce will change, creating a second user in Salesforce. Which we will have to disable all of them. Is there a way to fix this in Salesforce so that we can change the username without creating a second user or sending the customer a email saying there email address was changed? We currently have over 2600 users that will need to be changed. Is there a way to do this the with out having to disabling the old profile and pulling in the new? I have not found a easy way of disabling a profile either. Any Suggestions on this will be appreciated.