Resource Integration between ECC and APO

Hi Experts,

I have some doubts and need your help please.

1. In sap help it is mentioned that : from ECC to SCM

The following parameters are not transferred:

Task list usage

· Intervals

· Versions

· Hierarchies

· Definitions (shifts, break patterns, shift sequences)

Question -- I have seen new resource intervals being transferred to APO from ECC. Does it mean that if we integrate ECC and APO using External capacity indicator for resource then the above statement about the parameters not being transferred does not hold good ?

2. If I maintain capacity variants straight in APO, is there a risk that weekly CIF jobs for integration of resources will delete these capacity variants ?

3. Is there some way in ECC -- to maintain capacity variants ? I guess ---its 'version' in workcenter. If yes -- then after certail period if changes are required in version --then are those changes transferred to APO?

Rgds

Learner.