In FME flow if I had a process which downloaded physical files to resources folder but as part of the data workflow, these files will need be deleted once files are utilised, what is the best way to go?

If you download and process the files in the same workbench, you can use a TempPathnameCreator, and save the files to the temporary location provided. At the end of the workbench FME will automatically delete these files.

ooo - thanks - not come across this one before - I imagine this will work in Flow and not just desktop. Will give it a test.