Sequence by multiple columns

[Anonymous]

I need to be able to sequence my data using the current sequence - but totaling the "QuantityToBuild" column by grouping by the "Component" Column. 

So in otherwords I would need sequence 1 and 2 to be labeled as "1", Component "2128", and the QuantityToBuild "336". The go to sequence "2", Component "631", QuantityToBuild "224", and so on..

Here is my data currently as is:

Sequence	ItemNumber	Component	QuantityToBuild	Date
1	178	2128	224	5/11/2020 0:00
2	179	2128	112	5/11/2020 0:00
3	2270	631	224	5/11/2020 0:00
4	182	2128	56	5/11/2020 0:00
5	183	2128	56	5/11/2020 0:00
6	2271	631	224	5/11/2020 0:00
7	8485	8489	112	5/11/2020 0:00
8	8484	8489	504	5/11/2020 0:00
9	181	2128	168	5/11/2020 0:00
10	3108	924	90	5/11/2020 0:00
11	6413	9452	56	5/11/2020 0:00
12	3107	924	90	5/11/2020 0:00
13	6412	9452	56	5/11/2020 0:00
14	3109	924	30	5/11/2020 0:00

Here is how I would hope my data would look: 

Sequence	Component	QuantityToBuild	Date
1	2128	336	5/11/2020 0:00
2	631	224	5/11/2020 0:00
3	2128	112	5/11/2020 0:00
4	631	224	5/11/2020 0:00
5	8489	616	5/11/2020 0:00
6	2128	168	5/11/2020 0:00
7	924	90	5/11/2020 0:00
8	9452	56	5/11/2020 0:00
9	924	90	5/11/2020 0:00
10	9452	56	5/11/2020 0:00
11	924	30	5/11/2020 0:00

[Greg_Deckler]

Seems like you want to do a Group By on Component in Power Query. Then add a new Index column starting from 1. 

[Greg_Deckler]

Like this. Only thing I don't understand is the logic of when to group and when not to group.

let
Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("jZA9D8IgEIb/imE28e6AFhzVxcXE6NY4+MFgYls1dPDfez0S61BbFw6OJ8/xUhRqFx5NqM5BTdU6hnLTlKfw5MOyLu91FarI+21zrOI1vvb1orneLtxZHWNQh2mhkA+YO14JSQoZXu0McUZAMIE5gJAkpO9IROontWhy4JJpHHK2bXTUOW3WD1oB9TiYpdk4PjvntjPOpuKHArnEmA618MMqHodfv5S5fhLb/9EI7bWXR3r4QUoag218bywNxJcELM3HpTpJ6Q+pSVL/keo+6eEN", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type text) meta [Serialized.Text = true]) in type table [#"(blank)" = _t, #"(blank).1" = _t, #"(blank).2" = _t, #"(blank).3" = _t, #"(blank).4" = _t]),
#"Changed Type" = Table.TransformColumnTypes(Source,{{"(blank)", type text}, {"(blank).1", type text}, {"(blank).2", type text}, {"(blank).3", type text}, {"(blank).4", type text}}),
#"Promoted Headers" = Table.PromoteHeaders(#"Changed Type", [PromoteAllScalars=true]),
#"Changed Type1" = Table.TransformColumnTypes(#"Promoted Headers",{{"Sequence", Int64.Type}, {"ItemNumber", Int64.Type}, {"Component", Int64.Type}, {"QuantityToBuild", Int64.Type}, {"Date", type datetime}}),
#"Grouped Rows" = Table.Group(#"Changed Type1", {"Component"}, {{"QuantityToBuild", each List.Sum([QuantityToBuild]), type number}, {"Date", each List.Max([Date]), type datetime}}),
#"Added Index" = Table.AddIndexColumn(#"Grouped Rows", "Index", 1, 1)
in
#"Added Index"