When you are invited to join a ConstructConnect Organization, assuming you already have a Platform account, you receive an e-mail similar to the one below.
Click the Login to Accept or Decline button (link) to open the ConstructConnect site, where you are prompted to log in:
After logging in, you are presented with any invitations you have not accepted.
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Caution
Accepting an invitation to join a new Organization removes you from your existing Organization. When you are no longer associated with an Organization, your access to their projects may be reduced or removed.