Updating User roles
It's possible to change a User's role after they've joined an account. Roles can be increased or decreased depending on requirements.
Go to Account and then Users, and alongside the user you wish to upgrade, click on the ellipses (three dots) and select Edit profile:
In the following screen, look at the Account and sub account access section, where you will see the accounts and sub-accounts to which the user has access:
Click on the down arrow next to the current access level and then select the required role from the resulting drop-down menu:
Click Save in the bottom right of the screen to save your changes