A new user doesn’t have access to some of the brands. How can I give him access?

If you go to ‘Manage settings’, ‘Brands’ and hover with your mouse over the brand you want to give the user access to. Two options will show; you need the ‘Edit’ button. In the ‘Edit brand’ screen, you’re able to add channels or users to the brand. Simply add the user to the brand and you’re done!