How to Mark Activity and Offering as complete

Summary:

Hello experts,

I am using REST endpoints to mark activity as complete, completion rules should automatically mark the offering as complete which is not happening why?

Activity completion rule:

Endpoint:

body:
{ "activityAttemptStatus": "ORA_ASSN_TASK_COMPLETED", "activityAssignmentRecordId": 300000055465067, "activityLearnerRecordAttendance":"Y"}