please advice with a real time example when there will be a circumstances where both header and item division will be different.
In cross-division sales they are different.
Suppose,you have TV and its various range in you organisation which you have named as "01" division. That means all model of TV belong to "01" division.
You have also Refrigerator and its range as division "02".
All models of Refrigerator belong to "02" division.
Now, your customer has ordered for one TV and one Refrigerator which belong to two different division 01 and 02 (specified in the material master and called item division).
In this case, you are going for Cross-division sales.
So in the Sales area , you have to use "00" as division which is called cross-division, then only system will allow you to process material of different division in one Sales order.
So ,here "Header division" is "00" , which is different from "Item division" 01( TV) and 02(Refrigerator).