Seeing last day of zero production based on SUMMARIZE

[Anonymous]

Hello! I had previously asked this question which I would like to expand on.

If we imagine the following scenario: I am responsible for the output of a chocolate factory with three machines. I am measuring the output of these three machines on a daily basis. In my previous question (linked above) I am able to see the combined average daily production of these three machines (i.e. I can see the total output of the factory on a given day, and the average output for a custom date range):

averagex(summarize(Table[Date],"_Sum",sum(Table[Factory Output])),[_Sum])

However, in a seperate measure, I would now like to see the last date since production (i.e. combining all three machines) was zero. This could indicate the last date when there was a power outage and all machines stop producing for example. I have tried it in the following way:

CALCULATE(max('Table'[DATE]), filter('Table',sumx(summarize('Table', 'Table'[DATE],"_Sum",sum('Table'[Machine Output])),[_Sum])=0))

However, this measure returns the last date when either of the three machines stopped producing NOT when all three of them have stopped producing.

I imagine this is something to do with the context in which the measures are evaluated but I am unsure how to proceed. Any help would be much appreciated!

[CNENFRNL]

@Anonymous Frankly speaking, I didn't see the point forcing SUMMARIZE into the calculation; I hope this measure works

Latest Non-Work Date = 
MAXX (
    FILTER (
        FILTER ( ALL ( 'Table'[Date] ), 'Table'[Date] <= MAX ( 'Table'[Date] ) ),
        CALCULATE ( SUM ( 'Table'[Machine Output] ) ) = 0
    ),
    'Table'[Date]
)

[amitchandak]

@Anonymous , Can you share sample data and sample output in table format? Or a sample pbix after removing sensitive data.

You can try this in between

CALCULATE(max('Table'[DATE]), filter('Table',sumx(summarize('Table', 'Table'[DATE],"_Sum",sum('Table'[Machine Output])+0),[_Sum])=0))

[Anonymous]

Hi @amitchandak @Greg_Deckler thank you for your answers, however they both seem to return blank or the incorrect date. Please see an example pbix

[Greg_Deckler · Accepted solution]

@Anonymous I plugged my measure formula in and got 12/31/2020 See attached PBIX below sig.

Measure = 
  VAR __Table = SUMMARIZE('Table',[DATE],"Count",COUNTROWS(FILTER('Table',[Machine Output]=0)))
RETURN
  MAXX(FILTER(__Table,[Count]=3),[DATE])

[Anonymous]

@Greg_Deckler you were right, thank you!

[Greg_Deckler]

@Anonymous Maybe:

Measure = 
  VAR __Table = SUMMARIZE('Table',[DATE],"Count",COUNTROWS(FILTER('Table',[Machine Output]=0)))
RETURN
  MAXX(__Table,[DATE])