If date is between two dates return value

Hi, Anonymous 

Try to create a measure like below :

__FiscalMonth =
VAR _a =
    SELECTEDVALUE ( 'Rolling_Calendar'[Date] )
RETURN
    CALCULATE (
        MAX ( 'Fiscal_Calendar'[FiscalMonth] ),
        FILTER (
            ALL ( 'Fiscal_Calendar' ),
            'Fiscal_Calendar'[EndFiscalMonth] >= _a
                && _a >= 'Fiscal_Calendar'[StartFiscalMonth]
        )
    )

Result:

Please refer to the attachment below for details

Is this the result you want? Hope this is useful to you

Please feel free to let me know If you have further questions

Best Regards,
Community Support Team _ Zeon Zheng
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