convert null numbers for duplicate lines

Grouping by Id.1 with no aggregation then filling down the Qtd. OK column might work for you.
pbix file attached with your example data.

You can select column "Qtd. OK" and from the transform tab pick Fill Down if all the first ref value does not include null, else make group by first, then use fill down

Hi,

Thanks for the solution Omid_Motamedise  and jgeddes  offered, and i want to offer some more information for user to refer to.

hello JoaoFidalgo94 , you can create a blank query and put the following code to advanced editor in power query.

let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45WMjQ1NlbSUTICYnMgdgRiQyNjE1MzpVgdFFkTCyDhhFXaBCRqACScgdjSwtzM1EQpNhYA", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [#"Ref." = _t, #"Qtd. OK" = _t, #"Qtd. NOK" = _t, #"Cod. OP" = _t, Id.1 = _t]),
    #"Changed Type" = Table.TransformColumnTypes(Source,{{"Ref.", Int64.Type}, {"Qtd. OK", Int64.Type}, {"Qtd. NOK", Int64.Type}, {"Cod. OP", type text}, {"Id.1", Int64.Type}}),
    #"Grouped Rows" = Table.Group(#"Changed Type", {"Ref.", "Qtd. OK"}, {{"Count", each Table.AddIndexColumn(_,"Index",1,1),type table}}),
    #"Expanded Count" = Table.ExpandTableColumn(#"Grouped Rows", "Count", {"Qtd. NOK", "Cod. OP", "Id.1", "Index"}, {"Qtd. NOK", "Cod. OP", "Id.1", "Index"}),
    #"Replaced Value" = Table.ReplaceValue(#"Expanded Count",each [Qtd. OK],each if [Index]=1 then [Qtd. OK] else null,Replacer.ReplaceValue,{"Qtd. OK"}),
    #"Removed Columns" = Table.RemoveColumns(#"Replaced Value",{"Index"})
in
    #"Removed Columns"

Output

Best Regards!

Yolo Zhu

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