Refer to our point I research in my Database and write SQL to see relation in Database
---------------------
select document,PAYMADVICEID,voucher,LASTSETTLEVOUCHER,* from HSTHPaymAdviceLine
left join VENDTRANS on HSTHPaymAdviceLine.document = VENDTRANS.LASTSETTLEVOUCHER
where LASTSETTLEVOUCHER='EIN22000616'
--------------------
After that I saw the output that I want

--------------------
Next I develop my form on D365 by include table in AOT to my project

Then I try to do a grid to represent information that I want but I know in the beginning I need to join a relation to table that I want.
But on this step I got a limitation that I can't do.

And at the end I wish to have an output like this PPVNO show in this area.

Can someone guide me what's wrong is it?
Thanakorn