An administrator can let anyone with an address at the company's domain join their workspace without an invitation. They set this under Settings → Security, in the domain auto-join field. A public mail provider such as gmail.com can never be used, and a domain can belong to only one workspace.
Nothing joins until that link is opened. Signing up with an address only proves someone typed it, so without the confirmation anyone could register a colleague's address and see your company's workspace.
If the email does not arrive, check your spam folder, then select Send it again on the same screen. You can resend a few times in ten minutes.
You join as a member. An administrator can change your role afterwards under Team.
If your account was created earlier by an import, for example during a Harvest migration, confirming your address activates that account with the role and rates the import gave you, rather than creating a second one.
Turning the domain on does not add anyone by itself. People join as they sign up and confirm, and each one appears under Team as they do. Turn the field off to make sign-ups invite-only again; anyone who already joined stays a member until you remove them.
Updated 2026-10-23. Still stuck? Contact support or return to the Help Center.