Hi Martin,
If I understood the question correctly, you have a Hierarchy in BW system A which you want to make available in BW system B.
Although I cannot reproduce this constellation, please try to proceed as follows:
1. Generate an Export DataSource for the Characteristic in BW system A;
2. Replicate the DataSource in BW system B (as 7.0);
3. Create a Transformation from DataSource to Characteristic Hierarchy in BW system B *).
*) Map the InfoObjects in the various segments (I expect that many of them will be mapped automatically).
Best regards,
Sander