Copy service line items to new line items in the same contract (ME32K)?

Hello friends,

Requirement: There are many contracts (account assignment K) has service line items (type 9). I need to copy a contract line item along with its service line items (1 or more) into a new line item in the same contract. I tried bapi_po_change but it says Contracts can't be processed with it, as only in this bapi we have a structure for ESLL services. BAPI_CONTRACT_CHANGE or create don't have structure for ESLL..how to achieve this through a bapi or a fm?

So, in what way I could accomplish this? I came across some threads, which was helpful, but is not solving the purpose

Any guidance here would be of great help.

Thanks in advance.

Mayank