My friend is trying to register for battlemaster but he is keep getting 'SSO did not work as expected. Oops.' message. I never seen this happening 
Foundation: Sorry, couldn't help but correct the spelling. Hope you don't mind.
Tony,
Can you please verify something for me? Please make sure that once your friend is logged into the Core, he clicks on "Register" next to BattleMaster, and not on "Link to Core".
This is, of course, assuming that your friend is trying to create a new BM account, and not simply link an existing one to the Core.
