How do I change, extend or cancel a course I've set?

Go to Manage, then Training plan, and open the course. From there you can:

• "Remind all still to do", to send a reminder now
• "Give more time", to move the deadline for everyone
• change the opening date, the deadline or your message to staff
• "Close assignment", to take it off everyone's list. Completions are kept, but it can't be reopened
• "Cancel assignment", to delete it entirely. You can only do this before anyone's been sent it

For one person, open their page in People. You can send a reminder, "Change a due date", or "Mark not required" if the course doesn't apply to them (a reason is asked for).