Multifield Formula tool not outputting correct values from NULL values.

Question

The selected VW_String fields can have 3 values: Y, N, and NULL. I want to change NULL to "NA". I configured the multifield field formula tool as in the screenshot, but after that tool there are no "NA" values and it looks like it's actually turning the NULLS to "N"s.

csh8428 · Accepted Answer

I figured it out. The value size of those columns was 1. I set it to 2 and it worked fine.