How to maintain Hierarchy using 0cust_sales Infoobject

Dear All,

I want to create a Region dimension with the following hierarchy

India=>State=>District=>Sales District

The details are maintained in the Customer master in ECC.

I can get the details in 0CUST_SALES which has the following details

Using this i can maintain the property in the customer dimension to sort according to the region.

The concern here is i want to update the relationship between the state, district and sales district.

Is this relationship maintained somewhere in the ECC system or can we use 0CUST_SALES for this.

Kindly help me on the same.

Thanks in advance....