KSCF - is this required and impacts in MM/IM

Hi Experts,

Question regarding Carry forward Commitments (Cost Centers) to next year  via KSCF.

We have activated Commitments & Budget availability control and we use IM (Investment Mgt).

As part of year end closing business has already performed IM Carryforward activities. Question now is:

Do we still need to perform KSCF (Cost center commitments)?

As checked KSB2 report, all the commitments to Cost Centers are flown  / tagged with PO's. So if we do KSCF, will there be any impact in MM Module?

Please assist on clarifying the above two.

Thanks

Gopi