m code for "mmm-yy"

Hello jcastr02 

 

you can use Date.ToText(Date,"MMM-yy"). Here an example where I added a new column to make the transformation you need

let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45WMjDUAyIjA6VYHTjHEMwxsoBxYgE=", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [Date = _t]),
    #"Changed Type" = Table.TransformColumnTypes(Source,{{"Date", type date}}, "de-DE"),
    #"Added Custom" = Table.AddColumn(#"Changed Type", "Custom", each Date.ToText(_[Date], "MMM-yy"))
in
    #"Added Custom"

 

Copy paste this code to the advanced editor in a new blank query to see how the solution works. 

If this post helps or solves your problem, please mark it as solution (to help other users find useful content and to acknowledge the work of users that helped you)
Kudoes are nice too

Have fun

Jimmy