product hierarchy in basic data1 view and sales:sales.org.2 of material master

Hi,

I found one material where in product hierarchy 92059548B721403 maintained in Basic data1 view and another product hierarchy 92059548AN48918 maintained in sales:Sales.Org.2.

here my doubts are:why we need to maintain product hierarchy in two different place and what is the purpose?

Can somebody throw light on my doubts,please?