How to generate a unique id in snaplogic

I finally got it working… Might not be the simplest solution, but I found a forum where someone was trying to do manipulations on a column after the data was returned by the REST POST. So here’s what I did, and it works.

The ‘Map columns’ is where I manipulate the one column to make it a UUID. The Group By was indicated by the forum I read as needed to “put it back together”, but then I had to add a second splitter after that…