count of distinct costumer in units greater than 3

[#1]

I need to display in a chart dimension that repeat values over 3 times.

I try to solve my problem using "if" but and sum result but there is an error in expression.

Dimension of chart: [BUSINESS UNIT]

Expression

sum(AGGR(IF(Count ({(<[RAPP NDG] ={'*'}>) + ( <[RAPP COI] ={'*'}>) } DISTINCT [COSTUMER])>3, 1,0),[COSTUMER]))

I think that I need to solve problem with set analysis.

[Gysbert_Wassenaar]

Perhaps like this:

count({< [BUSINESS UNIT] ={"=count({<[RAPP NDG] ={'*'}>+<[RAPP COI] ={'*'}>} DISTINCT [CUSTOMER])>3"} >} [BUSINESS UNIT])

[#3]

I try it. It's ok! Thanks a lot!