This guide is for whoever manages the account. If a colleague invited you, you only need the last section at the bottom.
From your client area click Sign documents. On the page that opens choose MailProfessionale: you get in with the credentials you already use, without typing anything.
It is the container for your company. The name you choose is what your colleagues and document recipients will see.
Teams keep documents separate. You can have just one, or one per department — it is up to you. Inside a team you invite the colleagues who need to work together.
From the team, upload the file and indicate who has to sign and where. Recipients sign from their browser, with no need to register.
If you are already part of an organisation, your work ends here: you receive an email with an invitation, you click the link, and you are in the team.