List.combine node is not working

[sjinleeKMM8X]

Hi, I want to make a list like this
P1_col
P2_col
P3_col
so, I used for it by list.combine node but it shows all null.
and I don’t know why is not working
please help me…

[Hamish]

List.Combine needs a function input into the combineFunction input.

You can use List.Join as your function, then use String.Join afterwards top get your intended result. However, something simple like this it’s usually much easier to just set it up in a code block.