Hierarchy for Master Data Load from BW

Hi All

I'm loading Master data from BW infoobject 0Customer. There is no Hierarchy maintained for it in BW.

Rather than creating hierarchy manually in BPC, I want to include mapping in transformation/conversion file which should roll master data records coming from BW to ALL_CUSTOMERS (member manually maintained in BPC). ALL_CUSTOMERS will be parent node for the hierarchy in BPC. No other levels of hierarchy is required. All the data should have one parent.

Something like PARENT=*STR(ALL_CUSTOMERS)

Please share your ideas? Help is very much appreciated.

Thanks.