How to identify the parent transactions grouped in the Burden transaction

Hello,

My custmer customer has setting burden transactions created as separate expenditure item.

While running the burdening process system is generating the burdern transaction expenditure item line from multiple transaction lines on which burden multiplier need to be applied.

How to identify this new burden expenditure item has included which all base transactions expenditure items.

If there are multiple budend expenditure items ceated over the period of time hw to link them to original transaction expenditure items.

Any back end query to find out will be highly appricaited.

Regards,

Rajiv