I have created the BU, SITE, LINE, KepserverBasedAsset inside manufacturing app. I have written a service where I am passing the parent(BU) as a input, and getting all the KPIs for the child of BU. I have attached this service to the custom mashup. But, having trouble in data representation on duplicate mashup.
This issue seems to require deep look of the things that you have done at your end to achieve your requirement .
Please open a case with PTC technical support team for assistance on this