Written in help what is partial
FileMaker WebDirect, FileMaker Server scheduled scripts, and Custom Web Publishing run this script step as if the Perform without dialog option is selected.
So if you don't need showing dialog, no problem.
Thanks, but with the "Perform without dialog" option checked, it doesn't work. Comes up an empty dialog and the value is not replaced.
The behavior will occur If you don't set "how replace the contents" using lower "specify.." button.