Why can’t an email address be used as the Username?

Various username conventions were researched and vetting over several months. We understand the UID convention does not satisfy many users. In fact there is no solution that would satisfy the various constraints of the IAM Service and also be acceptable to all users. Yet we needed to have a convention that would get the job done.  We need to have something that works in all known current and future target apps and using email addresses wouldn't meet that criteria. Based on various feedback received, the NCDPI CIO, Michael Nicolaides, ultimately made the decision to use the UID convention.

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