Adding Clients to Projects
To add Clients to your projects, click the "Set up people" (or "Add some people") at the top of your project page:
On the next page, don't click the “+Add people” button at the top - that button is for adding your team members and outside collaborators. You'll scroll down to the bottom and click the “Add a client to this project” button at the bottom:
After that, you can add a new Client company or invite a Client company already on your account:
And then invite individual people from that Client company:
After you add Clients to a project, you can see them all listed at the bottom of the "People who can see this project" page, along with the option to add more Clients:
NOTE: Content in Client projects starts off as private to your team by default, so your Client users won't see anything in the project until content has been made visible to them. You'll need to switch the visibility of each item you want Clients to see.