A teammate cannot accept an invitation

What you may be seeing

• An invitation link is expired or says the signed-in email cannot accept it.

What usually causes it

• The invite expired after 7 days.
• The user is signed in with a different email than the invitation target.
• The invitation was revoked/already accepted.
• The person is already a member.

Do this

1. In Settings → Team, inspect Pending invitations and whether the invite is marked expired.
2. Resend an expired invite to create a fresh link, or revoke it if it should no longer be used.
3. The recipient must sign up/sign in with exactly the email address that was invited, then open the fresh link.

You know it is fixed when

• The person appears in the Team member list with the intended role and no pending invite remains for that membership.