DAX CALENDARAUTO function returns empty table when used in Power BI Desktop

hi garythomannCoGC ,

try like:

Dates (CALENDARAUTO) =
    VAR _FirstDate_CustomerBirth = MIN ( 'Customer'[Birth Date] )
    VAR _FirstDate_ProductAvailable = MIN ( 'Product'[Available Date] )
    VAR _FirstDate_SalesDelivery = MIN ( 'Sales'[Delivery Date] )
    VAR _FirstDate_SalesOrder = MIN ( 'Sales'[Order Date] )
    VAR _FirstDate =
        IF ( _FirstDate_SalesOrder < _FirstDate_SalesDelivery, _FirstDate_SalesOrder, _FirstDate_SalesDelivery )
    VAR _DateTable =
         FILTER (
             CALENDARAUTO(),
             YEAR ( [Date] ) >= YEAR(_FirstDate) -- 'CALENDARAUTO'.[Date]
    )
RETURN
    ADDCOLUMNS(
        _DateTable,
        "Year", YEAR ( [Date] ),
        "Month", FORMAT ( [Date], "mmm" ),
        "Month Number", MONTH ( [Date] ),
        "Quarter", FORMAT ( [Date], "\QQ yyyy" )
    )