Power query Replace value with value from other column

[Irwin]

Hi guys,

I have two columns. (A & B). Until 1. of september this year the value from column A was the one I was using. Now it is the value from column B.

How do I tell power query to replace the value in column A with the value from B in all data from 1. of september and forward?

Alternativly I can start using column B but would need to tell power query to replace all values in B with A from 1. of september and back.

Thank you very much for all help 🙂

[amitchandak · Accepted solution]

@Irwin , You can create a new column like

Column = if [Date] <= #date(2021,09,30)  then [ColumnA] else [Column B]

[Irwin]

It works. Thank you 🙂