Identify an asset associated to a service line

Hello All,

I have a requirement to identify an asset associated to a service/fee with lse_id 48/52. My understanding is we should have a corresponding line with lse_id 49/53 respectively in okc_k_lines_b using which we can identify asset from okc_k_items where jtot_object1_code='OKXCOVASST'.

However, I have seen scenarios where there is no corresponding line with lse id 49/53, how do I identify an asset line id in such scenarios?

Can someone please share query or technical details around this?

Thanks in advance,

Manisha.