The User Activation module allows first-time users to activate their accounts and set a temporary password. When users create accounts that do not have an established channel to send the passwords to the users, this feature helps the users activating their accounts.
Configure the settings to allow only those users to activate their accounts that have never been authenticated. This behavior might differ depending on the configuration and directory type.
To enable user activation:
Log in to Self Service Password Reset at https://dns-name/sspr as an administrator.
In the toolbar, click your name.
Click Configuration Editor.
Click Modules > Public > Modules > User Activation.
Configure the User Activation Module settings using the help.
In the toolbar, click Save changes.