Count and filter between two dates

Hi, nicole1995 

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

Current Subscription:

Expired Subscription:

You may create a measure as below.

Result = 
var t = 
ADDCOLUMNS(
    ALL('Current Subscriptions'),
    "Result",
    var _startdate = [StartDate]
    var _date = EOMONTH(_startdate,-1)
    var _d = DATE(YEAR(_date),MONTH(_date),DAY(_startdate))
    return
    COUNTROWS(
        FILTER(
            ALL('Expired Subscriptions'),
            [MemberID]=EARLIER('Current Subscriptions'[MemberID])&&
            [EndDate]>=_d&&
            [EndDate]<=_startdate-1
        )
    )
)
var _result =
SUMX(
    SUMMARIZE(
        'Current Subscriptions',
        'Current Subscriptions'[Type],
        'Current Subscriptions'[StartDate].[Month],
        "Re",
        SUMX(
            FILTER(
                t,
                [Type]=SELECTEDVALUE('Current Subscriptions'[Type])&&
                'Current Subscriptions'[StartDate].[Month]=EARLIER('Current Subscriptions'[StartDate].[Month])
            ),
            [Result]
        )
    ),
    [Re]
)
return
IF(
    ISBLANK(_result),
    0,
    _result
)

Result:

Best Regards

Allan

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