Consolidation Group Change and Consolidation Activity

Hi Experts,

I am new in SAP consolidation, I have a question regarding the difference between the function "consolidation group change" and "consolidation activity".

If I read in the sap library, these 2 functions are separated, but if I look at the content, I saw some similarity where the consolidation group change also included the investment activity like acquisition and divestiture.

Could anyone explain what are the difference between these 2 function?

When I was a user, if the group acquiered a new cons unit, I just add a new cons unit in the consolidation group hierarchy, assign consolidation method, add the additional financial data for the ownership percentage (activity = first consolidation), enter the reported financial data, run CI function and add one more column in my report painter.

When I read SAP library, I saw the "consolidation group change" function talking about the consolidation activity, now I wonder, what are the difference? What is the business scenario for using the "normal" CI activity and the "consolidation group change"? Please anyone advise. Thank you.

regards,