Contract API creating multiple sub lines with different lse_id's

Hi,

  We are using contracts API's in R12.2.4 to create main line and sub lines for a given contract.For a given main line, when creating a sub line using service contracts screen, their is only one sub line with reference  product (lse_id = 9) created in back ground. This is expected functionality.

But when creating the same sub line using Contract API's, many sub lines with different lse_id's 3, 5, 9 are created. But only sub line with lse_id 9 is visible in front end.

okc_contract_pub.create_contract_line

              ( p_api_version                   => l_api_version,

                p_init_msg_list                 => l_init_msg_list,