We are looking at implementing family planning - plan items by cluster at level 3, cluster item groups at level 2 and cluster groups at level 1.
Is anybody using family planning and how is it working?

simply define the (dis)aggregation relations and start planning.

I'm also very interested in Family Planning, but only as a means to use the Planning BOMs and Critical BOM functionality. As I understand it I have to set up Families in order to use the Planning BOM. What is the simplest possible setup I can get away with?

Have set up (dis)aggregation tables and it works very well for normal, nettable warehouses. However, for non-nettable warehouses, the (dis)aggreagation always comes out at 100%. Is this what is supposed to happen or is there a way round it?