Adding text to query if a condition is met

[davidz106]

I want to add text AAB to column ID (type text) if the text value already includes letter F. I cannot seem to combine the below expresions:

If I only use this it works fine:

#"Add to name" = Table.TransformColumns(#"Renamed",  {{"ID", each Text.Combine({"AAB",(_)}), type text}})

I want to add conditional statment but I am falling short. What I would want to achive:

each if Text.Contains([ID], "F") then [execute the above] else null)

I am trying:

= if Text.Contains({#"Renamed, {"ID"}}, "F") then (Table.TransformColumns(#"Renamed", {{"ID", each Text.Combine({"AAB",(_)}), type text}})) else null

but getting expression error (list not convertable to text)

[rohit_singh · Accepted solution]

Hi @davidz106 ,

Please try this : 

= Table.AddColumn(#"Changed Type", "Custom", each if Text.Contains([ID],"F") then [ID] & "AAB" else null)

Kind regards,

Rohit

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