Try

https://winscp.net/eng/docs/scriptcommand_option#batch

I have a batch script that will try to move a list of files to another extension, basically renaming it. However, if the file has already been renamed, I want to ignore the error and continue my job. I am finding nothing online on how to ignore this. The only thing I see is "option confirm off", which is in my ftp script right before my open.
I appreciate your help.