Hello! I am a company legal person. Now I don't know what the company account number is. How can I find it?
My company account, how can I find the login account?
You'll need to find the person that set the account up to learn the login(s).
If you have a logon with proper access, you can use the 'Account' link above, then 'Membership' on the left to see that account's Team ID, if that's what you mean by 'account number'.