Replicating Plant and customer in SAP CRM from ECC

Hello experts,

We have requirement of downloading plant from SAP ECC system with the same name as Plant, so we have done the code according to SAP Note 865321.

Example, if plant be TE11, then In CRM BP will be created as 000000TE11.

Now we are facing the issue when this plant is assigned to one customer, That means the plant works as Customer as well.

Example , Suppose customer 200000TE11 is created and attached to Plant TE11.

we want the created customer should be attached somehow with the same BP 000000TE11 as sold to party based on if last 4 characters are same as T001W-WERKS.

Is there any way that, Same BP should have sold to party role assigned to it.

Thanks

Ajay Singh