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dimDate = ADDCOLUMNS(
    CALENDAR(MIN(fact_InternetSales[ShipDate]),MAX(fact_InternetSales[ShipDate])),
    "Year", YEAR([Date]),
    "Month", MONTH([Date]),
    "Month Name", FORMAT([Date],"MMMM"),
    "Day of Week", FORMAT([Date],"DDDD"),
    "Quater", FORMAT([Date],"Q"),
    "YearQuater", FORMAT([Date],"YYYY")&"/Q"&FORMAT([Date],"Q"))

dimDate = ADDCOLUMNS(
    CALENDAR(MIN(fact_InternetSales[ShipDate]),MAX(fact_InternetSales[ShipDate])),
    "Year", YEAR([Date]),
    "Month", MONTH([Date]),
    "Month Name", FORMAT([Date],"MMMM"),
    "Day of Week", FORMAT([Date],"DDDD"),
    "Quater", FORMAT([Date],"Q"),
    "YearQuater", FORMAT([Date],"YYYY")&"/Q"&FORMAT([Date],"Q"))

I got a code very similar to the ones already shared by others.

There is no submit button for the assignment file

dimDate = ADDCOLUMNS(
    CALENDAR(MIN(fact_InternetSales[ShipDate]),MAX(fact_InternetSales[ShipDate])),
    "Year", YEAR([Date]),
    "Month", MONTH([Date]),
    "Month Name", FORMAT([Date],"MMMM"),
    "Day of Week", FORMAT([Date],"DDDD"),
    "Quater", FORMAT([Date],"Q"),
    "YearQuater", FORMAT([Date],"YYYY")&"/Q"&FORMAT([Date],"Q"))

dim_Date = ADDCOLUMNS(
    CALENDAR(MIN(fact_InternetSales[ShipDate]),MAX(fact_InternetSales[ShipDate])),
    "Year", YEAR([Date]),
    "Month", MONTH([Date]),
    "Month Name", FORMAT([Date],"MMMM"),
    "Day of Week", FORMAT([Date],"DDDD"),
    "Quater", FORMAT([Date],"Q"),
    "YearQuarter", FORMAT([Date],"YYYY")&"/Q"&FORMAT([Date],"Q"))