https://community.appian.com/discussions/f/user-interface/26908/fileupload-duplicate-checkHi Alll, I have a fileupload control allows multiple files to upload. I should write a validation should not allow duplicate file names uploaded and should not be there in database too. Does anyone had this situation. Your thoughts will highly helpen-USTelligent Community 12https://community.appian.com/thread/105707?ContentTypeID=1Sun, 18 Dec 2022 16:01:44 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:2e712ea8-aee8-46ed-9d6e-e28eaf246195ujjwalr0002<p>Hi, Check this out&nbsp;<a href="/discussions/f/general/25169/how-to-restrict-uploading-of-duplicate-files-in-appian-interface">https://community.appian.com/discussions/f/general/25169/how-to-restrict-uploading-of-duplicate-files-in-appian-interface</a></p><div style="clear:both;"></div>https://community.appian.com/thread/105706?ContentTypeID=1Sun, 18 Dec 2022 13:45:41 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:9ebad18b-2d2a-4dee-8666-1e554f78a04dRainfall<p>you can save the file names in a rule input (check the array box).&nbsp;&nbsp;check if any matches occur, try looking at the array functions in documentation to see which one works for you. to check in the db, you can create a QE which returns the file name column and compare it with your values.&nbsp;</p><div style="clear:both;"></div>