Use option batch abort.

See
https://winscp.net/eng/docs/scripting#using_scripting
https://winscp.net/eng/docs/guide_automation#commands
https://winscp.net/eng/docs/scriptcommand_option

I can't seem to find a way to suppress both the dialog and the function that WinSCP waits-on-error for user intervention, Abort, retry, skip, etc. Is there a way to do this? Thank you. I'd rather just have the entire session recorded in the log files as I already have code in place to capture errors, and I am monitoring the return code from the command-line call to WinSCP.