If you’re planning to create a course with multiple start dates, then it is possible by using course batches.
Following are the steps which you need to follow :
a. Create multiple Course batches for the course.
b. In each of the batch settings, set a start date for each of the course batch.
c. Optionally, if you want all the users in course to be in a batch, edit the course and in course settings enable “Force
Video Walkthrough :