Preparations for Consolidaton Group Chanes Process

Hi all

does any one ran Preparation for Consolidation Group change task @ Consolidation Monitor where moving OLD CONS GROUP to NEW CONS GROUP with mimimal changes in other words, as it is to NEW GROUP( change in PARENT UNIT)

my questions:

1. do we need to make any adjustment entries until AFD? think no Change except Parent Unit will change from OLD to NEW

2. Ending period is NEW CONS GROUP Creation @ CG master data level because the same period for PREP Cons Group task

3. how to handle Goodwill in this process where subs were 100% owned by parent units.

appreciated your comments/suggestions/help in advance