Is there a standardized workflow or a built-in function for wanting to upload and rename a file? However, if the file name already exists, then make it unique. It just seems like this happens so often where I need document uploads that may be. There is a one liner that I am unaware of.

There is a 'nameconflict' parameter of cffile that will sort that out for you... https://cfdocs.org/cffile

Lucee makes the unique much more randomly since a while