Problems with extra Profict Center ECC 6.0?

Dear Gurus,

My client has 4 Business areas in 4.7. Upgradation is going on now to ECC 6.0. Now, the issue is with one Business Area in which there are two division. Client wants to create 5 profit centers in ECC 6.0 by dividing one Business Area in 4.7 into two. What could be the problems if we do this? Or is there any other way to find out the profitability of the two divisions which are there now in one Business Area.

I will explain the problem again

there are 4 Business areas

In one business area there are two divisions

Client wants to know the profitability of these two divisions separately. for this client says he will have separate profit centers for these two division. So, total Profit centers will become 5 in ECC 6.0

My understanding is Problem comes with balance sheet. probably.

Can anybody explain?

Points are guaranteed for useful answer.

Regards