A Salesforce admin must pre-approve a Salesforce user to access SigningHub. This pre-approval maps the Salesforce user as an Enterprise User account inside SigningHub. However, only a certain number of Salesforce users can be approved, as limited by the subscribed service plan of SigningHub.


The "Manage Users" section is used to allow the Salesforce users to access the SigningHub enterprise account. In this regard, the Salesforce admin can add/ delete users from the Salesforce users list. If a user being added is already registered in SigningHub, they will be activated, otherwise an invitation email will be sent to them to create a SigningHub account. 


In case of removing any activated user from the users list, the user's account will be blocked and they will not be able to access the SigningHub app from Salesforce.