Distinctcount on two filter values

Hi YBavré 

please try

X =
COUNTROWS (
    FILTER (
        VALUES ( ENHANCED_CKI_CUSTOMER[Enterprise_Nbr] ),
        COUNTROWS (
            INTERSECT (
                CALCULATETABLE ( VALUES ( ENHANCED_CKI_PRODUCTS[LOB] ) ),
                { "A", "B" }
            )
        ) = 2
    )
)