Skip to main content
cancel
Showing results for 
Search instead for 
Did you mean: 

The Power BI Data Visualization World Championships is back! Get ahead of the game and start preparing now! Learn more

Reply
Kitty-SD
Frequent Visitor

M Code: Day of Fiscal Year (date table)

Hi,

 

I need some help adapting some M code for a date table so that I can add in a column for the day of the fiscal year. For example, for a fiscal year beginning on 1st May, I would need the 1st May to show as 1 and for the 30th April as 365 (across multiple years). This could also be a formula for a custom column if that works. Here is the M code I'm currently using:

 

___________________________________________________________________________________________________________________________________________

 

= let fnDateTable = (StartDate as date, EndDate as date, optional FYStartMonthNum as number, optional Holidays as list, optional WDStartNum as number ) as table =>
let
FYStartMonth = if List.Contains( {1..12}, FYStartMonthNum ) then FYStartMonthNum else 1,
StartOfWeekDayName = Text.Proper( Text.Start( Date.DayOfWeekName( #date(2021, 2,1) ), 3)),
WDStart = if List.Contains( {0, 1}, WDStartNum ) then WDStartNum else 0,
CurrentDate = Date.From(DateTime.FixedLocalNow()),
DayCount = Duration.Days(Duration.From(EndDate - StartDate))+1,
Source = List.Dates(StartDate,DayCount,#duration(1,0,0,0)),
AddToday = if EndDate < CurrentDate then List.Combine( {Source, {CurrentDate}}) else Source,
TableFromList = Table.FromList(AddToday, Splitter.SplitByNothing()),
ChangedType = Table.TransformColumnTypes(TableFromList,{{"Column1", type date}}),
RenamedColumns = Table.RenameColumns(ChangedType,{{"Column1", "Date"}}),
InsertYear = Table.AddColumn(RenamedColumns, "Year", each Date.Year([Date]), type number),
InsertYearOffset = Table.AddColumn(InsertYear, "YearOffset", each Date.Year([Date]) - Date.Year(Date.From(CurrentDate)), type number),
InsertCompletedYear = Table.AddColumn(InsertYearOffset, "YearCompleted", each Date.EndOfYear([Date]) < Date.From(Date.EndOfYear(CurrentDate)), type logical),

InsertQuarter = Table.AddColumn(InsertCompletedYear, "QuarterOfYear", each Date.QuarterOfYear([Date]), type number),
InsertCalendarQtr = Table.AddColumn(InsertQuarter, "Quarter & Year", each "Q" & Number.ToText([QuarterOfYear]) & " " & Number.ToText([Year]), type text),
InsertQuarternYear = Table.AddColumn(InsertCalendarQtr, "QuarternYear", each [Year] * 10000 + [QuarterOfYear] * 100, type number),
InsertQuarterOffset = Table.AddColumn(InsertQuarternYear, "QuarterOffset", each ((4 * Date.Year([Date])) + Date.QuarterOfYear([Date])) - ((4 * Date.Year(Date.From(CurrentDate))) + Date.QuarterOfYear(Date.From(CurrentDate))), type number),
InsertCompletedQuarter = Table.AddColumn(InsertQuarterOffset, "QuarterCompleted", each Date.EndOfQuarter([Date]) < Date.From(Date.EndOfQuarter(CurrentDate)), type logical),

InsertMonth = Table.AddColumn(InsertCompletedQuarter, "MonthOfYear", each Date.Month([Date]), type number),
InsertDay = Table.AddColumn(InsertMonth, "DayOfMonth", each Date.Day([Date]), type number),
InsertMonthName = Table.AddColumn(InsertDay, "Month Name", each Text.Proper( Date.ToText([Date], "MMMM")), type text),
InsertMonthShort = Table.AddColumn( InsertMonthName, "MonthShortName", each try Text.Proper( Text.Start([Month Name], 3 )) otherwise Text.Proper( [Month Name] ), type text),
InsertMonthInitial = Table.AddColumn(InsertMonthShort, "Month Initial", each Text.Proper(Text.Start([Month Name], 1)) & Text.Repeat( Character.FromNumber(8203), [MonthOfYear] ), type text),
InsertCalendarMonth = Table.AddColumn(InsertMonthInitial, "Month & Year", each [MonthShortName] & " " & Number.ToText([Year]), type text),
InsertMonthnYear = Table.AddColumn(InsertCalendarMonth , "MonthnYear", each [Year] * 10000 + [MonthOfYear] * 100, type number),
InsertMonthOffset = Table.AddColumn(InsertMonthnYear, "MonthOffset", each ((12 * Date.Year([Date])) + Date.Month([Date])) - ((12 * Date.Year(Date.From(CurrentDate))) + Date.Month(Date.From(CurrentDate))), type number),
InsertCompletedMonth = Table.AddColumn(InsertMonthOffset, "MonthCompleted", each Date.EndOfMonth([Date]) < Date.From(Date.EndOfMonth(CurrentDate)), type logical),
InsertMonthEnding = Table.AddColumn(InsertCompletedMonth, "MonthEnding", each Date.EndOfMonth([Date]), type date),

InsertDayInt = Table.AddColumn(InsertMonthEnding, "DateInt", each [Year] * 10000 + [MonthOfYear] * 100 + [DayOfMonth], type number),
InsertDayOfYear = Table.AddColumn(InsertDayInt, "Day of Year", each Date.DayOfYear([Date]), Int64.Type),
InsertDayWeek = Table.AddColumn(InsertDayOfYear, "DayOfWeek", each Date.DayOfWeek([Date], Day.Monday) + WDStart, Int64.Type),
InsertDayName = Table.AddColumn(InsertDayWeek, "DayOfWeekName", each Text.Proper( Date.ToText([Date], "dddd" )), type text),
InsertDayInitial = Table.AddColumn(InsertDayName, "Weekday Initial", each Text.Proper(Text.Start([DayOfWeekName], 1)) & Text.Repeat( Character.FromNumber(8203), [DayOfWeek] ), type text),

InsertWeekNumber= Table.AddColumn(InsertDayInitial, "ISO Weeknumber", each
if Number.RoundDown((Date.DayOfYear([Date])-(Date.DayOfWeek([Date], Day.Monday)+1)+10)/7)=0
then Number.RoundDown((Date.DayOfYear(#date(Date.Year([Date])-1,12,31))-(Date.DayOfWeek(#date(Date.Year([Date])-1,12,31), Day.Monday)+1)+10)/7)
else if (Number.RoundDown((Date.DayOfYear([Date])-(Date.DayOfWeek([Date], Day.Monday)+1)+10)/7)=53 and (Date.DayOfWeek(#date(Date.Year([Date]),12,31), Day.Monday)+1<4))
then 1 else Number.RoundDown((Date.DayOfYear([Date])-(Date.DayOfWeek([Date], Day.Monday)+1)+10)/7), type number),
InsertISOyear = Table.AddColumn(InsertWeekNumber, "ISO Year", each Date.Year( Date.AddDays( Date.StartOfWeek([Date], Day.Monday), 3 )), Int64.Type),
BufferTable = Table.Buffer(Table.Distinct( InsertISOyear[[ISO Year], [DateInt]])),
InsertISOqNum = Table.AddColumn(InsertISOyear, "ISO QuarterOfYear", each if [ISO Weeknumber] >39 then 4 else if [ISO Weeknumber] >26 then 3 else if [ISO Weeknumber] >13 then 2 else 1, Int64.Type),
InsertISOqtr = Table.AddColumn(InsertISOqNum, "ISO Quarter", each "Q" & Number.ToText([ISO QuarterOfYear]), type text),
InsertISOQuarter = Table.AddColumn(InsertISOqtr, "ISO Quarter & Year", each "Q" & Number.ToText([ISO QuarterOfYear]) & " " & Number.ToText([ISO Year]), type text),
InsertISOqNy = Table.AddColumn(InsertISOQuarter, "ISO QuarternYear", each [ISO Year] * 10000 + [ISO QuarterOfYear] * 100, type number),
//InsertISOday = Table.AddColumn(InsertISOqNy, "ISO Day of Year", (OT) => Table.RowCount( Table.SelectRows( BufferTable, (IT) => IT[DateInt] <= OT[DateInt] and IT[ISO Year] = OT[ISO Year])), Int64.Type),
InsertCalendarWk = Table.AddColumn(InsertISOqNy, "Week & Year", each Text.From([ISO Year]) & "-" & Text.PadStart( Text.From( [ISO Weeknumber] ), 2, "0"), type text ),
InsertWeeknYear = Table.AddColumn(InsertCalendarWk, "WeeknYear", each [ISO Year] * 10000 + [ISO Weeknumber] * 100, Int64.Type),
InsertWeekOffset = Table.AddColumn(InsertWeeknYear, "WeekOffset", each (Number.From(Date.StartOfWeek([Date], Day.Monday))-Number.From(Date.StartOfWeek(CurrentDate, Day.Monday)))/7, type number),
InsertCompletedWeek = Table.AddColumn(InsertWeekOffset, "WeekCompleted", each Date.EndOfWeek( [Date], Day.Monday) < Date.From(Date.EndOfWeek(CurrentDate, Day.Monday)), type logical),
InsertWeekEnding = Table.AddColumn(InsertCompletedWeek, "WeekEnding", each Date.EndOfWeek( [Date], Day.Monday), type date),

AddFY = Table.AddColumn(InsertWeekEnding, "Fiscal Year", each "FY" & (if [MonthOfYear] >= FYStartMonth and FYStartMonth >1 then Text.PadEnd( Text.End( Text.From([Year] +1), 2), 2, "0") else Text.End( Text.From([Year]), 2)), type text),
AddFQ = Table.AddColumn(AddFY, "Fiscal Quarter", each "FQ" & Text.From( Number.RoundUp( Date.Month( Date.AddMonths( [Date], - (FYStartMonth -1) )) / 3 )), type text),
AddFQnYr = Table.AddColumn(AddFQ, "FQuarternYear", each (if [MonthOfYear] >= FYStartMonth and FYStartMonth >1 then [Year] +1 else [Year]) * 10000 + Number.RoundUp( Date.Month( Date.AddMonths( [Date], - (FYStartMonth -1) )) / 3 ) * 100, type number),
AddFM = Table.AddColumn(AddFQnYr, "Fiscal Period", each if [MonthOfYear] >= FYStartMonth and FYStartMonth >1 then [MonthOfYear] - (FYStartMonth-1) else if [MonthOfYear] >= FYStartMonth and FYStartMonth =1 then [MonthOfYear] else [MonthOfYear] + (12-FYStartMonth+1), type text),
AddFMnYr = Table.AddColumn(AddFM , "FPeriodnYear", each (if [MonthOfYear] >= FYStartMonth and FYStartMonth >1 then [Year] +1 else [Year]) * 10000 + [Fiscal Period] * 100, type number),
FYCalendarStart = #date( Date.Year(StartDate)-1, FYStartMonth, 1 ),
InsertFFD = Table.AddColumn( AddFMnYr, "FiscalFirstDay", each if [MonthOfYear] >= FYStartMonth and FYStartMonth >1 then #date( Date.Year([Date])+1, FYStartMonth, 1) else #date( Date.Year([Date]), FYStartMonth, 1) ),
AddFYDateRange = Table.Buffer( Table.ExpandTableColumn( Table.ExpandTableColumn( Table.AddColumn( Table.Group( Table.Group( Table.AddColumn( Table.AddColumn(
Table.RenameColumns( Table.TransformColumnTypes( Table.FromList( { Number.From(FYCalendarStart)..Number.From(EndDate) }, Splitter.SplitByNothing()),{{"Column1", type date}}), {{"Column1", "Date"}}),
"FiscalFirstDay", each if Date.Month([Date]) < FYStartMonth then #date( Date.Year([Date]), FYStartMonth, 1) else #date( Date.Year([Date])+1, FYStartMonth, 1)),
"FWStartDate", each Date.AddYears(Date.StartOfWeek( [Date], Day.Monday), 1)),
{"FiscalFirstDay", "FWStartDate"}, {{"AllRows", each _, type table [Date=nullable date, FiscalFirstDay=date, FWStartDate=date]}}),
{"FiscalFirstDay"}, {{"AllRows2", each _, type table [FiscalFirstDay=date, FWStartDate=date, AllRows=table]}}),
"Custom", each Table.AddIndexColumn( [AllRows2], "FY Week", 1, 1))[[Custom]],
"Custom", {"FiscalFirstDay", "FWStartDate", "AllRows", "FY Week"}, {"FiscalFirstDay", "FWStartDate", "AllRows", "FY Week"}),
"AllRows", {"Date"}, {"Date"})[[Date], [FY Week]]
),
MergeFYW = Table.NestedJoin(InsertFFD, {"Date"}, AddFYDateRange, {"Date"}, "AddFYWeek", JoinKind.LeftOuter),
ExpandFYWeek = Table.TransformColumnTypes( Table.ExpandTableColumn(MergeFYW, "AddFYWeek", {"FY Week"}, {"Fiscal Week"}),{{"Fiscal Week", Int64.Type}}),
AddFYW = Table.AddColumn( ExpandFYWeek, "Fiscal Year & Week", each if FYStartMonth =1 then [#"Week & Year"] else if Date.Month([Date]) < FYStartMonth then Text.From( Date.Year([Date])) & "-" & Text.PadStart( Text.From([Fiscal Week]), 2, "0") else Text.From( Date.Year([Date])+1) & "-" & Text.PadStart(Text.From([Fiscal Week]), 2, "0"), type text),
InsertFWeeknYear = Table.AddColumn(AddFYW, "FWeeknYear", each if FYStartMonth =1 then [WeeknYear] else (if Date.Month([Date]) < FYStartMonth then Date.Year([Date]) else Date.Year([Date])+1) * 10000 + [Fiscal Week] * 100, Int64.Type),

InsertIsAfterToday = Table.AddColumn(InsertFWeeknYear, "IsAfterToday", each not ([Date] <= Date.From(CurrentDate)), type logical),
InsertIsWorkingDay = Table.AddColumn(InsertIsAfterToday, "IsWorkingDay", each if Date.DayOfWeek([Date], Day.Monday) > 4 then false else true, type logical),
InsertIsHoliday = Table.AddColumn(InsertIsWorkingDay, "IsHoliday", each if Holidays = null then "Unknown" else List.Contains( Holidays, [Date] ), if Holidays = null then type text else type logical),
InsertIsBusinessDay = Table.AddColumn(InsertIsHoliday, "IsBusinessDay", each if [IsWorkingDay] = true and [IsHoliday] <> true then true else false, type logical),
InsertDayType = Table.AddColumn(InsertIsBusinessDay, "Day Type", each if [IsHoliday] = true then "Holiday" else if [IsWorkingDay] = false then "Weekend" else if [IsWorkingDay] = true then "Weekday" else null, type text),

CurrentDateRecord = Table.SelectRows(InsertDayType, each ([Date] = CurrentDate)),
CurrentISOyear = CurrentDateRecord{0}[ISO Year],
CurrentISOqtr = CurrentDateRecord{0}[ISO QuarterOfYear],
CurrentYear = CurrentDateRecord{0}[Year],
CurrentMonth = CurrentDateRecord{0}[MonthOfYear],
CurrentFiscalFirstDay = CurrentDateRecord{0}[FiscalFirstDay],
PrevFiscalFirstDay = Date.AddYears(CurrentFiscalFirstDay, -1),
CurrentFQ = CurrentDateRecord{0}[FQuarternYear],
CurrentFP = CurrentDateRecord{0}[FPeriodnYear],
CurrentFW = CurrentDateRecord{0}[FWeeknYear],
InsertISOQtrOffset = Table.AddColumn(InsertDayType, "ISO QuarterOffset", each ((4 * [ISO Year]) + [ISO QuarterOfYear]) - ((4 * CurrentISOyear) + CurrentISOqtr), type number),
InsertISOYrOffset = Table.AddColumn(InsertISOQtrOffset, "ISO YearOffset", each [ISO Year] - CurrentISOyear, type number),
InsertFYoffset = Table.AddColumn(InsertISOYrOffset, "FiscalYearOffset", each try (if [MonthOfYear] >= FYStartMonth then [Year]+1 else [Year]) - (if CurrentMonth >= FYStartMonth then CurrentYear+1 else CurrentYear) otherwise null, type number),
InsertCurrentFQ = Table.AddColumn(InsertFYoffset, "IsCurrentFQ", each if [FQuarternYear] = CurrentFQ then true else false, type logical),
InsertCurrentFP = Table.AddColumn(InsertCurrentFQ, "IsCurrentFP", each if [FPeriodnYear] = CurrentFP then true else false, type logical),
InsertCurrentFW = Table.AddColumn(InsertCurrentFP, "IsCurrentFW", each if [FWeeknYear] = CurrentFW then true else false, type logical),
InsertPYTD = Table.AddColumn(InsertCurrentFW, "IsPYTD", each if CurrentYear-1 = [Year] and [Day of Year] <= CurrentDateRecord{0}[Day of Year] then true else false, type logical),
ListPrevFYDates = List.Buffer( Table.SelectRows( Table.ExpandTableColumn( Table.NestedJoin(
Table.AddIndexColumn( Table.RenameColumns( Table.TransformColumnTypes( Table.FromList( List.Dates( PrevFiscalFirstDay, Number.From(CurrentFiscalFirstDay-PrevFiscalFirstDay),#duration(1,0,0,0)), Splitter.SplitByNothing()),{{"Column1", type date}}), {{"Column1", "DateFY"}}), "Index", 1, 1), {"Index"},
Table.AddIndexColumn( Table.RenameColumns( Table.TransformColumnTypes( Table.FromList( List.Dates( Date.AddYears( PrevFiscalFirstDay, -1), Number.From( PrevFiscalFirstDay - Date.AddYears( PrevFiscalFirstDay, -1)),#duration(1,0,0,0)), Splitter.SplitByNothing()),{{"Column1", type date}}), {{"Column1", "DateFY"}}), "Index", 1, 1)
, {"Index"}, "Table", JoinKind.LeftOuter), "Table", {"DateFY"}, {"PrevDateFY"}), each [DateFY] <= CurrentDate)[PrevDateFY] ),
InsertPFYTD = Table.AddColumn(InsertPYTD, "IsPFYTD", each if [FiscalYearOffset] = -1 and List.Contains(ListPrevFYDates, [Date] ) then true else false, type logical),

RemoveToday = Table.RemoveColumns( if EndDate < CurrentDate then Table.SelectRows(InsertPFYTD, each ([Date] <> CurrentDate)) else InsertPFYTD, {"Day of Year", "FiscalFirstDay"}),
ChType = Table.TransformColumnTypes(RemoveToday,{{"Year", Int64.Type}, {"QuarterOfYear", Int64.Type}, {"MonthOfYear", Int64.Type}, {"DayOfMonth", Int64.Type}, {"DateInt", Int64.Type}, {"DayOfWeek", Int64.Type}, {"ISO Weeknumber", Int64.Type}, {"WeeknYear", Int64.Type}, {"MonthnYear", Int64.Type}, {"QuarternYear", Int64.Type}, {"Fiscal Period", Int64.Type}, {"WeekOffset", Int64.Type}, {"MonthOffset", Int64.Type}, {"QuarterOffset", Int64.Type}, {"YearOffset", Int64.Type}, {"FiscalYearOffset", Int64.Type}}),
ReorderColumns = Table.ReorderColumns(ChType, {"Date", "Year", "YearOffset", "YearCompleted", "QuarterOfYear", "Quarter & Year", "QuarternYear", "QuarterOffset", "QuarterCompleted", "MonthOfYear", "DayOfMonth", "Month Name", "MonthShortName", "Month Initial", "Month & Year", "MonthnYear", "MonthOffset", "MonthCompleted", "MonthEnding", "DateInt", "DayOfWeek", "DayOfWeekName", "Weekday Initial", "Day Type", "ISO Year", "ISO YearOffset", "ISO QuarterOfYear", "ISO Quarter", "ISO Quarter & Year", "ISO QuarternYear", "ISO QuarterOffset", "ISO Weeknumber", "Week & Year", "WeeknYear", "WeekOffset", "WeekCompleted", "WeekEnding", "Fiscal Year", "FiscalYearOffset", "Fiscal Quarter", "FQuarternYear", "IsCurrentFQ", "Fiscal Period", "FPeriodnYear", "IsCurrentFP", "Fiscal Week", "Fiscal Year & Week", "FWeeknYear", "IsCurrentFW", "IsAfterToday", "IsWorkingDay", "IsHoliday", "IsBusinessDay", "IsPYTD", "IsPFYTD"}, MissingField.UseNull)
in
ReorderColumns, documentation = [
Documentation.Name = " fxCalendar",
Documentation.Description = " Date table function to create an ISO-8601 calendar",
Documentation.LongDescription = " Date table function to create an ISO-8601 calendar",
Documentation.Category = " Table",
Documentation.Version = " 1.30: Fixed DayOfWeekday added Day.Monday",
Documentation.Source = " local",
Documentation.Author = " Melissa de Korte",
Documentation.Examples = { [Description = " See: https://forum.enterprisedna.co/t/extended-date-table-power-query-m-function/6390",
Code = " Optional paramters: #(lf)
(FYStartMonthNum) Month number the fiscal year starts, Januari if omitted #(lf)
(Holidays) Select a query (and column) that contains a list of holiday dates #(lf)
(WDStartNum) Switch default weekday numbering from 0-6 to 1-7 by entering a 1 #(lf)
#(lf)
Important to note: #(lf)
[Fiscal Week] starts on a Monday and can contain less than 7 days in a First- and/or Last Week of a FY #(lf)
[IsWorkingDay] does not take holiday dates into account #(lf)
[IsBusinessDay] does take optional holiday dates into account #(lf)
[IsPYTD] and [IsPFYTD] compare Previous [Day of Year] with the Current [Day of Year] number, so dates don't align in leap years",
Result = " " ] }
]
in
Value.ReplaceType(fnDateTable, Value.ReplaceMetadata(Value.Type(fnDateTable), documentation))

1 ACCEPTED SOLUTION
edhans
Super User
Super User

You can use this logic and get this result:

edhans_0-1675279105602.png

Here is sample code to paste in and test with:

let
    Source ={Number.From(#date(2020,5,1))..Number.From(#date(2027,4,30))},
    #"Converted to Table" = Table.FromList(Source, Splitter.SplitByNothing(), {"Date"}, null, ExtraValues.Error),
    #"Changed Type" = Table.TransformColumnTypes(#"Converted to Table",{{"Date", type date}}),
    #"Added Fiscal Year" = Table.AddColumn(#"Changed Type", "Fiscal Year", each if Date.Month([Date]) > 4 then Date.Year([Date]) + 1 else Date.Year([Date]), Int64.Type),
    #"Grouped Rows" = 
        Table.Group(
            #"Added Fiscal Year", 
            {"Fiscal Year"}, 
            {
                {
                    "All Rows",
                     each 
                        Table.AddIndexColumn(
                            Table.Sort(_, {"Date", Order.Ascending}),
                            "Day of Year",
                            1
                        ),
                        type table [Date=nullable date, Fiscal Year=number, Day of Year=number]
                }
            }
        ),
    #"Expanded All Rows" = Table.ExpandTableColumn(#"Grouped Rows", "All Rows", {"Date", "Day of Year"}, {"Date", "Day of Year"})
in
    #"Expanded All Rows"

Here is what I did:

First, I Grouped the data by a fiscal year column, so May 1, 2022 through April 30, 2023 would be in the Fiscal 2023 group. The aggregation was "All Rows"

edhans_1-1675279334326.png

Then I edited the M code. That Grouping will just have an "each _, type table..."
I wrapped that with Table.AddIndexColumn and Table.Sort (to ensure the dates were ascending)

Then I expanded everything but the Fiscal Year column. You will want to reorder your columns to put Fiscal Year where it belongs vs in the first column.

How to use M code provided in a blank query:
1) In Power Query, select New Source, then Blank Query
2) On the Home ribbon, select "Advanced Editor" button
3) Remove everything you see, then paste the M code I've given you in that box.
4) Press Done
5) See this article if you need help using this M code in your model.



Did I answer your question? Mark my post as a solution!
Did my answers help arrive at a solution? Give it a kudos by clicking the Thumbs Up!

DAX is for Analysis. Power Query is for Data Modeling


Proud to be a Super User!

MCSA: BI Reporting

View solution in original post

2 REPLIES 2
Syndicate_Admin
Administrator
Administrator

Old threat, but for those who stumble over this topic:

Table.AddColumn(Source, "DayNoOfFiscalYear", Date.DayOfYear(Date.AddMonths([Date], 4), Int64.Type)
--> day number of fiscal year, beginning in May, each year.

Best,
dermalyst

edhans
Super User
Super User

You can use this logic and get this result:

edhans_0-1675279105602.png

Here is sample code to paste in and test with:

let
    Source ={Number.From(#date(2020,5,1))..Number.From(#date(2027,4,30))},
    #"Converted to Table" = Table.FromList(Source, Splitter.SplitByNothing(), {"Date"}, null, ExtraValues.Error),
    #"Changed Type" = Table.TransformColumnTypes(#"Converted to Table",{{"Date", type date}}),
    #"Added Fiscal Year" = Table.AddColumn(#"Changed Type", "Fiscal Year", each if Date.Month([Date]) > 4 then Date.Year([Date]) + 1 else Date.Year([Date]), Int64.Type),
    #"Grouped Rows" = 
        Table.Group(
            #"Added Fiscal Year", 
            {"Fiscal Year"}, 
            {
                {
                    "All Rows",
                     each 
                        Table.AddIndexColumn(
                            Table.Sort(_, {"Date", Order.Ascending}),
                            "Day of Year",
                            1
                        ),
                        type table [Date=nullable date, Fiscal Year=number, Day of Year=number]
                }
            }
        ),
    #"Expanded All Rows" = Table.ExpandTableColumn(#"Grouped Rows", "All Rows", {"Date", "Day of Year"}, {"Date", "Day of Year"})
in
    #"Expanded All Rows"

Here is what I did:

First, I Grouped the data by a fiscal year column, so May 1, 2022 through April 30, 2023 would be in the Fiscal 2023 group. The aggregation was "All Rows"

edhans_1-1675279334326.png

Then I edited the M code. That Grouping will just have an "each _, type table..."
I wrapped that with Table.AddIndexColumn and Table.Sort (to ensure the dates were ascending)

Then I expanded everything but the Fiscal Year column. You will want to reorder your columns to put Fiscal Year where it belongs vs in the first column.

How to use M code provided in a blank query:
1) In Power Query, select New Source, then Blank Query
2) On the Home ribbon, select "Advanced Editor" button
3) Remove everything you see, then paste the M code I've given you in that box.
4) Press Done
5) See this article if you need help using this M code in your model.



Did I answer your question? Mark my post as a solution!
Did my answers help arrive at a solution? Give it a kudos by clicking the Thumbs Up!

DAX is for Analysis. Power Query is for Data Modeling


Proud to be a Super User!

MCSA: BI Reporting

Helpful resources

Announcements
Power BI DataViz World Championships

Power BI Dataviz World Championships

The Power BI Data Visualization World Championships is back! Get ahead of the game and start preparing now!

December 2025 Power BI Update Carousel

Power BI Monthly Update - December 2025

Check out the December 2025 Power BI Holiday Recap!

FabCon Atlanta 2026 carousel

FabCon Atlanta 2026

Join us at FabCon Atlanta, March 16-20, for the ultimate Fabric, Power BI, AI and SQL community-led event. Save $200 with code FABCOMM.