Absence Management

Hi,
Below is my code to create leave in HRMS,
leave is getting created but with the approved status.. ststus should be "pending approval" or "saved" na?..
and

can u tell me the api to submit leave for approval ?

-----------------------------------------------------------------------------------------------------------------
DECLARE
l_absence_attendance_id NUMBER;
l_dur_dys_less_warning BOOLEAN;
 l_dur_hrs_less_warning BOOLEAN;     
 l_exceeds_pto_entit_warning BOOLEAN;
 l_exceeds_run_total_warning BOOLEAN;
 l_abs_overlap_warning BOOLEAN;       
 l_abs_day_after_warning BOOLEAN;    
 l_dur_overwritten_warning BOOLEAN;  
 l_object_version_number number;
 l_occurrence number;
 l_absence_days number;
 l_absence_hours number;