Headcount problem

Hi, Syndicate_Admin 

Try this:
M code:

let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45WckktKFEwVNJR8i1ScARSjo4g0i8fSBgqxepAFRiBFRQrOAFpJycQGZlaTJwSA4QSY6gSZyDt7OyMzRQTHEqQTDHFrSQWAA==", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [Dept = _t, Employee = _t, #"Tax Code" = _t, #"Duplicate Tax Code" = _t, #"Trust Head Count" = _t]),
    #"Changed Type" = Table.TransformColumnTypes(Source,{{"Dept", type text}, {"Employee", type text}, {"Tax Code", type text}, {"Duplicate Tax Code", type text}, {"Trust Head Count", Int64.Type}}),
    #"Added Index" = Table.AddIndexColumn(#"Changed Type", "Index", 1, 1, Int64.Type),
    #"Merged Queries" = Table.NestedJoin(#"Added Index", {"Employee", "Dept"}, #"Added Index", {"Employee", "Dept"}, "Added Index", JoinKind.LeftOuter),
    #"Added Custom" = Table.AddColumn(#"Merged Queries", "Result", each if [Index] = List.Min([Added Index][Index]) then 1 else 0),
    #"Removed Columns" = Table.RemoveColumns(#"Added Custom",{ "Index", "Added Index"})
in
    #"Removed Columns"

Result:

Please refer to the attachment below for details.

Hope this helps.

Best Regards,
Community Support Team _ Zeon Zheng

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