Limitations?

Hi there,

I'm trying to migrate about 140 million files in many subfolders and getting out of memory errors. Before I go down the rabbit hole of trying to find the right settings, is this even possible? are there any limitations to move this number of files?

There should not be limit of total transferred files.
But there might be a limit of how many files in a single folder WinSCP can handle.
What is your largest folder?
Can you post a log file?