@ sandreini
I've asked a Moderator to assist you with your forum username. I'm not sure if you will be contacted in email or a private message.
Unfortunately, there is no way a user can change one's community user name on their own; i.e., the one that displays in this forum. Changing the Intuit Account user ID will not change the forum username. but the Moderator is all-powerful and can do it for you. 😁
