learndash_mark_complete_process()
Function: Processes a request to mark a step/course complete.
@since: 2.1.0, 4.11.0 | Uses: 7 functions
@package: LearnDash / Course
Source Files: includes/course/ld-course-progress.php
@package: LearnDash / Course
Source Files: includes/course/ld-course-progress.php