Need to update email and not able to edit profile.
Thought it would be as easy as clicking Edit Profile but field not changeable.
You are right. You would think it would be under your profile, but we have this information linked to primary database at ACS which manages the records for everyone who has an ACS ID. You can go to https://myaccount.acs.org/myaccount/AcctOverview.html and it will change your email address throughout all ACS systems.