SUMX/SUMIF - MAX

[ROEL_T]

Problem

Need sum of max "Index" per "Boekstuk"

Solution

SUMXX = sumx(SUMMARIZE('pbi FactCustomerTransactions_Te ontvangen','_made Boekstuk'[Boekstuk]),MeasuresTryOuts[TeOntvangen])

where 

TeOntvangen = CALCULATE(sum('pbi FactCustomerTransactions_Te ontvangen'[InvoiceAmountMST]),'pbi FactCustomerTransactions_Te ontvangen'[Index]=max('pbi FactCustomerTransactions_Te ontvangen'[Index]))

[amitchandak]

@ROEL_T , You need share calculation for

This can be like

calculate([Openstaande Kl], allselected())

or

calculate(max(values('Date'[Date]),[Openstaande Kl]) , allselected())