Approving requests to join organizations
When users outside the organization request to be added to an organization, the administrators are notified about the requests through email notifications and in-app notifications.
To approve a join request:
You can simply approve the join request from the Notifications list by clicking the Accept button. However, if you want to see more details about the user requesting access, click the notification to browse to the Members tab of the organization.
In the Members tab of the organization, click the name of the user to view their profile. Once you are satisfied with the request click the Accept button. If you do not wish to grant access, just click the Reject button. The user is automatically added in the All members group.