Connection between VBPA and VBAP

I am joining VBAP and VBPA using VBELN AND POSNR. (I tried keeping both the tables as a child or parent)

It is giving me no records.

My aim is to achieve partner function and to check in KNA1 for all the details of Sold-to party, Billed-to party and Ship-to party. And also to bring columns related to VBAP (Material entered, order quantity)

By keeping only VBLEN column in the join condition, it is giving me only Ship to.

I do not have SAP access,I am just using the data source which has SAP tables to create my dashboard in Incorta.

Any suggestions
Thank you
KJ