Open registration allows students to be added to a course via email address without an account on that particular instance. Administrators can enable or disable open registration for the account.
You must have administrator access for your institution to change the open registration setting for the account.
In Global Navigation, click the Admin menu [1], then click the name of the account [2].
In Account Navigation, click the Settings link.
In the Features list of options, click the Open Registration checkbox.
Note: By default, this option is turned off.
Click the Update Settings button.