This is a suggestion from one of our clients (currently on 4.1.).

They have experienced failures in creating new courses via csv upload, when using large courses as templates; the operation took too long. In addition, deleting just three courses via csv caused a 500 error followed by a lock timeout, though in this case the courses were successfully deleted. 

They suggest that bulk course operations via csv include an asynchronous option to utilize ad-hoc tasks; this option could also be available for single-course deletion, so the user has an option to not wait.

Acceptance criteria

• As a site admin who is creating/deleting new courses via "upload courses," I want an option for the upload operation to utilize an ad-hoc task, to avoid excessive wait times, timeouts, and errors.