Scenario: I setup the same username for Pro Online and My Account. I logged into My Account prior to logging into Pro Online. I am now getting an error message that the username is already in use.
Q1: Which account should I login with first to complete the Account Update page?
A1: You should login with the username associated with your production site. Once you do this, you will need to access the Preparer(s) Menu setup page and select the box to allow for multiple usernames to be associated with your email address.
Q2: What should I do if I logged into My Account first?
A2: Send an email to vita support with the username and email address. We will need to sync the accounts for you
Blog posted 09/19/2017