In the "Members" section of the platform settings, click on 'Send an Invitation to All Non-Registered Users'. By non-registered users, the system refers to pending and draft users.
When you click on this link, a window will prompt you to write an invitation text that will be included in the email.
💡 Note
You can also (re)generate an invitation in real time for draft or pending users by clicking on the Options to the left of a user in the list.