I created a google analytics account for my organization a few weeks ago. I signed on yesterday to grant access to our webmaster, but it says I do not have sufficient permissions when I go to User Management. I am the only one who has ever accessed this account, so I'm not sure what I need to do in order to gain access.
Re: User Management
This is very strange that you have created GA account and you don't have sufficient permission to give access to others.
Click on Admin>>Property>>User Management and check for the access level once.
Hope this helps.