The Sign-up not allowed message appears when you try to create an account or sign in on a team subdomain (e.g. yourteam.start.me) but you’re not authorized to join. There are two common reasons.
Your email domain is not whitelisted
The team owner has restricted sign-ups to specific email domains (e.g. @yourcompany.com). If your email address uses a different domain, you’ll see:
"Sign-up not allowed"
"You tried to sign up using [your email]"
"This team portal does not allow sign-ups from [your domain]"
What to do: Contact the team owner and ask them to either:
Invite you directly by email or invite link, or
Add your email domain to the whitelist so everyone with that domain can join.
Sign-up is completely disabled
Some teams disable public sign-ups entirely. In that case, the sign-up page shows "Sign-up not allowed" with no option to request access.
What to do: Contact the team owner and ask them to invite you to the team directly.
Requesting access as an existing user
If you already have a Start.me account and are logged in, you may see a "Request access" button instead. Clicking it sends a request to the team owner, who can then approve your membership.
For team owners
You control who can join your team in the Members tab of your Team admin panel. You can invite members by email, share an invite link, or whitelist email domains for automatic enrollment.
Warning
When you whitelist an email domain (e.g. @mycompany.com), everyone with that domain can automatically access your team. Only whitelist domains you fully control.