Hi @kevinnay , This unfortunately is a bug in the String Manipulation multi Column node which appears whenever it is presented with data types such as Boolean as in your screenshot.
This post may give some ideas on handling it, but unfortunately the multi column node is not as useful at it ought to be because of this limitation.
Also mentioned here.
In terms of your specific problem, is it just the two columns (in which case the regular String Manipulation node, called once for each column would be an option) or is for a dynamic number of columns? (so possibly a column list loop with string manipulation enclosed may be the option, although you will need some additional work for handling “current column”. It’s somewhat frustrating as the multi column string manipulation node ought to be a nice simple solution to this kind of problem.
You can also using a combination of unpivot, string manipulation and Pivot nodes to perform the conversion.
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