[How to remove all invalid characters ('/','¥','<',...) in a string before using it to be a new file name]

[Thu_Trinh]

if newfileName is unchecked for invalid characters before “copyFile” activity, error will happen

[Yoichi]

Hi,

Can you try the following?

 String.Join("",fileName.Split(System.IO.Path.GetInvalidFileNameChars))

Note: The above also removes path separator (\). So you need to extract just filename in advance.

Regards,

[Thu_Trinh]

Thank you Yoichi so much, it works well after I tried your suggestion.
<3.<3