need to create a new contact for a Instance in Instal Base

Hi,

I want to create a new contact for some instances in install Base. I am preparing a script for the same using the API csi_item_instance_pub.update_item_instance. While initalizing the values into party_tbl table, i am not sure what particular value is to be given for contact_ip_id. When i am giving NULL its throwing error:

Instance ID: 24757

Create a new contact party

Msg1: The contact_ip_id passed belongs to a different instance party. Please provide a valid contact_ip_id.

x_return_status = E

x_msg_count = 1

x_msg_data = The contact_ip_id passed belongs to a different instance party. Please provide a valid contact_ip_id.