Cost Center Planning in S/4HANA

Hi Experts,

I have been searching to understand the changes associated with Cost Center Planning. I did understood that in S/4HANA the planning function need to be carried out in IBP using BEx Reporting tool and then push the planning data to ERP.

However, I couldn't understand if there are any specific configuration settings required for connecting with IBP.

Also, can I still continue to use KP06 or KP26? Please help me understand.

Thanks,