Sum column distinct per another particular column

[cosmicyes]

I am building a report about costumer complaints.

Now I am trying to get the right sum for "Reklamationskosten" (cost).
The correct answer is: 113 EUR.

The formula should do (in words): 
"Sum the 'Reklamationskosten' for each 'Rekl. ID' but only once for each 'Reklamationskosten Art' "

Sure there is a way to do this in DAX but I cannot find out how. 
Thank you all very much in advance!

[cosmicyes · Accepted solution]

a very nice guy on Stackoverflow gave me the solution:

Reklamationskosten Measure (Agg) = 
SUMX ( 
    SUMMARIZE (
        'Table',
        'Table'[Rekl. ID],
        'Table'[Reklamationskosten Art],
        "Reklamationskosten", MAX ( 'Table'[Reklamationskosten] )
    ),
    [Reklamationskosten]
)

[cosmicyes]

Does nobody have an idea? 😢
Do I need to provide additional info?

[amitchandak]

@cosmicyes ,

Try a measure like , if Reklamationskosten is a column

Sumx(Values(Table[Rekl. ID]), calculate(Sum(Table[Reklamationskosten] )))

if Reklamationskosten is  measure , a new measure to be used

Sumx(Values(Table[Rekl. ID]), [Reklamationskosten] )

refer if needed

https://www.youtube.com/watch?v=ufHOOLdi_jk

[cosmicyes]

@amitchandak ,
Thank you for your quick reply.
I should have noted that Reklamationskosten is a column, thank you.
So I tried as you suggested
Sumx(Values(Table[Rekl. ID]), calculate(Sum(Table[Reklamationskosten] )))

But the result then is 226 EUR.
It counts every row but should only count once per distinct 'Reklamationskosten Art' --> the result should be 113.