I have a numbered list, which has the same names (display names). These same name line items then have different child.
The values of the same name list items needs to be added up to only one list item which has the latest PO date in the same list.
For Example-
This is the source module that has the same parent names with different child names in it. Also the values of the same PO’s are differentiated in terms of the PO Creation Date.

The destination module is:-

Here the values needs to be added up. The values that are shown here are wrong. For the PO 53852328_1 which has a similar name but the values are different; hence the value for 53852328_1 should be 20+40= 60 for one PO and the 2nd should remain the same value depending on the PO Creation Date(here 1st one should remain same and the 2nd repeated PO should have the value of 60). I am trying to figure out how to get the solution. Any help or suggestions would be appreciated.
Thanks