Engineering custom work on Tutor LMS
Know the data model first
Tutor LMS stores courses, topics, lessons, quizzes and assignments as WordPress posts in a parent-child structure. Enrollments are posts of the tutor_enrolled type with the student as author and the course as parent, and their status moves from pending to completed when payment completes. Lesson progress is saved as user meta, course completion as a comment of type course_completed, and quiz attempts in their own tables. Custom features have to respect this model, or reports and certificates stop agreeing with each other. Our developer guides document these structures.
Hook into the right events
Most custom features attach to a handful of events. tutor_after_enrolled runs when an enrollment is completed (with the course, user and enrollment IDs), tutor_after_enroll runs for pending and completed enrollments, tutor_lesson_completed_after after a lesson is marked complete, tutor_quiz_finished when a quiz attempt ends and tutor_course_complete_after when a course is completed. Filters such as tutor_is_enrolled and tutor_user_can_complete_course let us change decisions without touching the core.
Package it as your plugin
Everything we build lives in a plugin with your name on it: clean code, its own settings, uninstall routines that tidy up, and checks that Tutor LMS (and Pro, where needed) is active and on a supported version. That makes the feature portable, testable and safe to keep through updates.
Plan for the next version
Tutor LMS ships updates often, and Pro needs a compatible core version. We note which hooks and templates each feature depends on, so an update can be checked quickly. Our maintenance plans include that check.