When trying to update fields 'Reported' and 'Incident Time' through API for an SR getting error

When trying to update fields 'Reported' and 'Incident Time' through API for an SR getting error:

 

Error :1: The Incident Reported Date 30-AUG-18 and Incident Occurred Date 31-AUG-18 do not match. The Incident Reported Date must be equal to or greater than the Incident Occurred date.

Status :E

DECLARE

l_return_status              VARCHAR2(1);

l_msg_count                  NUMBER;

l_msg_data                   VARCHAR2(1000);

l_msg_dummy                  VARCHAR2 (4000) ;

l_output                     VARCHAR2 (15000);

l_service_request_rec        cs_servicerequest_pub.service_request_rec_type;

l_notes                      cs_servicerequest_pub.notes_table;

l_contacts                   cs_servicerequest_pub.contacts_table;

l_sr_update_out_rec          cs_servicerequest_pub.sr_update_out_rec_type;