terminate an employee sing API

Dear All,

I' m trying to terminate an employee in HRMS using API.

no error in the procedure but it 's not giving me any result.

Create or replace PROCEDURE   XX_API_END(nb in number) IS

l_validate Boolean := False;

   l_period_of_service_id Number;

   l_object_version_number Number;

   l_actual_notice_period_date Date:= sysdate();

   l_effective_date date := sysdate();

   l_supervisor_warning Boolean;

   l_event_warning Boolean;

   l_interview_warning Boolean;

   l_review_warning Boolean;

   l_recruiter_warning Boolean;

   l_asg_future_changes_warning Boolean;

   l_f_asg_future_changes_warning Boolean;

   l_pay_proposal_warning Boolean;