How To Retract data from BPC 10.1 NW to SAP ECC (CO/MM)

Greetings

Has anyone managed to Retract data from BPC10/10.1 NW to ECC? We have this requirement and I have only seen a How to document for BPC7.5. (https://archive.sap.com/documents/docs/DOC-4229)

The document has a prerequisite for importing an attached transport request but this link seems corrupted it is a very old document.

Kindly assist with steps to do this for BPC10.1

Many thanks

Jordan