I have finally able to link Sales Invoice Items table with Referred Sales Order and Delivery Note.
From Standart Invoice Format Sales Items appears as below.
After digging more, i create following custom formatting codes to view Delivery Note and Sales Order details in seperate table on The Same Sales Invoice ;
At Each Item on the Sales Invoice i see po_no , po_date ,shipment delivery note date . There can be more then one item on same order and delivery note. As a result repeating po_no and delivery_date seen on the main table.
Is there a simple way to filter out the same table filed content on Jinja? Simply comparing the field with following row item and unprinting if it is the same.
So far i search Jinja forms but could fine any approriate solution.
Please help me to solve my issue if anybody has experienced the same problem.