The Lobby
Where you land after signing in: every workspace you belong to, your pending invitations, and where you create a workspace.
Signing in lands you on the Lobby. It is a chooser rather than a dashboard: it greets you by name and asks you to pick a workspace to continue, or create a new one.
You can come back to it any time by selecting the workspace name at the top of the sidebar. Opening a workspace you are not a member of also brings you here.
Workspaces
A list of every workspace you belong to, with your role in each. Pick one to go in. The workspaces you entered most recently are at the top.
There is a search box, which stops mattering at three workspaces and starts mattering at thirty. Nothing here shows what is inside a workspace: isolation applies in the Lobby too, so this is a list of names.
A membership that has been disabled stays in the list, marked Disabled, so you can tell losing access apart from never having had it.
A workspace that signs in through your organization's identity provider is marked SAML. Picking it sends you to your identity provider, so a mix of SAML and non-SAML workspaces works from the one list.
You can also skip the Lobby by going straight to a workspace's own address, which is worth bookmarking if you work in one far more than the others.
Invitations
A second tab, listing invitations you have not answered yet, with a count on the tab. Each can be accepted or declined.
Accepting puts you in that workspace with the role you were given, and it joins your list. Declining removes the invitation; somebody has to send a new one if you change your mind.
The tab reads No pending invitations when there is nothing waiting, so an invitation somebody says they sent and which is not here has gone to a different address.
Creating a workspace
Create a workspace asks for a Workspace name, and Create workspace makes you its Owner. A name can be as short as 1 character. A name that is too long or contains a tab is turned down with a message saying why.
Your first workspace starts your free trial when you create it. After that, a workspace created this way normally comes without a trial. The free trial is once per person, so if you already belong to a workspace, or have an invitation pending, a new one does not start another. See Free trial.
When you belong to nothing
A new account with no workspace and no invitation gets a short guide instead of a list: You're not part of any workspace yet, with the option to create one, and a reminder of which address a colleague should send an invitation to.
That is where you land after signing up, whether with an email address or with Google. Nothing is created for you, so you name your first workspace yourself.
That address matters. Most "I never got the invite" cases are an invitation sent to a different address from the one the account uses, and the Lobby is where you can see which address you actually signed in with.
Signing out
From the account menu in the Lobby, without needing to enter a workspace first.