Error using slicer to filter between start and end dates

Hi, trt18-sistemas 

Based on your description, I created data to reproduce your scenario. The pbix file is attached in the end.

Table:

Calendar(a calculated table):

Calendar = CALENDARAUTO()

You may create calculated columns and a measure as below.

Calculated column:

Calendar Year Month = YEAR('Calendar'[Date])*100+MONTH('Calendar'[Date])
Start Year Month = YEAR('Table'[Start Date])*100+MONTH('Table'[Start Date])
End Year Month = YEAR('Table'[End Date])*100+MONTH('Table'[End Date])

Measure:

Visual Control = 
var _yearmonth = SELECTEDVALUE('Calendar'[Calendar Year Month])
var tab = 
ADDCOLUMNS(
    'Table',
    "flag",
    IF(
        ISBLANK([End Year Month]),
        IF(
            [Start Year Month]<=_yearmonth,
            1,0
        ),
        IF(
            [Start Year Month]<=_yearmonth&&
            [End Year Month]>=_yearmonth,
            1,0
        )
    )
)
return
SUMX(
    tab,
    [flag]
)

Finally you may put the measure in the visual level filter and use the year-month column from 'Calendar' table to filter the result.

Best Regards

Allan

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