https://community.appian.com/discussions/f/user-interface/20326/file-extension-blocking-in-file-upload-componentHi, We have defined the list of file extensions which are to be allowed via admin console as shown below. When we try to load any file which has an extension(png) that is not present in the admin console, it prompts an error message to the useren-USTelligent Community 12https://community.appian.com/thread/111051?ContentTypeID=1Thu, 13 Apr 2023 21:04:10 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:53311569-c067-4357-b291-678bb8985cd8Mike Schmitt<p>I can verify it still seems to be an issue - however from what I can tell, it doesn&#39;t actively block the submission of a form, even while the apparent validation error is showing up.</p><div style="clear:both;"></div>https://community.appian.com/thread/88585?ContentTypeID=1Thu, 02 Dec 2021 10:16:33 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:aa352ff5-bb96-4d17-9e31-79bfd9816aecanbuselvams0004<p>Did you get any solution for this issue?&nbsp;</p><div style="clear:both;"></div>https://community.appian.com/thread/79301?ContentTypeID=1Mon, 01 Feb 2021 15:40:58 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:66715b78-bf40-400d-afc0-9d0b72d051ecMike Schmitt<p>This actually seems very similar to the error <a href="/discussions/f/user-interface/19167/bug-in-fileupload-component/">reported several months ago</a> where the same thing happens but with an empty file, instead of a file with a disallowed extension.&nbsp; I&#39;m unclear if a fix was ever released for that.&nbsp;</p> <p>If this is causing you any sort of issues, I&#39;d suggest raising a support case with the same details and screenshots you&#39;ve provided here.</p><div style="clear:both;"></div>