I'm currently trying to set up ServiceDesk Plus with a SSO method. 

I've got to the point where I can import approx 250 users using the Provising App which imports users with their login name the same as their primary email address. ( John.Smith@domain.com)

However the SSO I want to use is Microsoft Azure AD, which has the login name as ( JohnS@domain.com) , which clearly won't work as the login names differ. 

The fix I've found up to now is to log into " https://mail.zoho.com/cpanel/index.do" and manually add an additonal email id for the user. 

Obviously this method isn't practical for 250+ users, and considering we are moving towards 1000+ users in the next few years I really don't want to manually add additional email IDs. 

Is there an automated or alternative method to work around this issue?

Thomas M