Moodle function to edit contents

Moodle API has functions like core_course_create_courses() core_course_duplicate_course() core_course_get_contents() These all work fine. Is there a way to set and edit the contents of a course? We are syncing our SIS (Student Information System) to Moodle and we want o create for every course in our SIS a course in Moodle. But we need to set contents. Even to be able to set an url back to the course in our SIS would be something.