If you’re using an account for your business and want to add a colleague, go to Account Settings and then Add Team Members.
Click on Invite and add the information the tool asks you:
You have 3 level of access & limitations to the account: Administrator, Standard User, and Custom:
The Administrator has access to all the account data.
The Standard User has limited access to the Account Settings (billing information).
The Custom role gives you the possibility to set the limitations for each user as you wish.
Keep in mind that you can add different users to work for different projects.