Capacity balancing - Dunning by collection strategy

Hi Experts,

I have one more question on this capacity balancing

Here is the scenario - I have collection activity X and I have collection department DEP1, DEP2, DEP3, DEP4 and DEP5.

I have configured FPCMCAP (capacity balancing as follows)

Activity        Collection dept   upper limit

X                 DEP1                       5

X                 DEP2                      15

X                 DEP3                      10

X                 DEP4                      35

X                 DEP5                      20

Now my question is how capacity balancing would know which account goes to which department? Because in all the cases dunning will hit same activity. Only the associated department is different.

Thanks in advance.