Even if there are no users enrolled in an event, you can still send a message directly from the event. For example, if you want to remind users to self-enroll for an event, you can click the Message Users button from the Manage Enrollment tab.
You won’t be taken directly to the Create Message step when there are no users enrolled. You’ll simply select the users who you want to remind to enroll in the same user picker you would use to make an assignment or record a completion.
You’ll see the following banner to remind you to do so.
Once you select the users you want to message about the event, click continue.
From there you are taken to the Create Message step.
Create your message and then click continue.
On step 3, you can view or edit the users who will receive the message, or edit the message. Once you’re all set, click the Send Message button.