F4_FILENAME_SERVER is not returning any value

Dear All,

I want a popup for the application server from where I can select file for further processing. I have used F4_FILENAME_SERVER, but the function module is not working. It is giving a popup with the filenames but after selection of a particular file if I select the check button, it is not returning anything (coming blank). Please can you suggest anything on this.

Thanks and regards,

Atanu