https://community.appian.com/discussions/f/plug-ins/19406/custom-safe-link-componentWe have a requirement to display a link (https url)i n Appian to download file from external system and once user clicks on the link, the link should be hidden. Intent is to not allow the user to click the download link more than once. There is a reasonen-USTelligent Community 12https://community.appian.com/thread/75894?ContentTypeID=1Tue, 11 Aug 2020 16:42:04 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:067644ea-f859-4fbc-a45e-b22ff8d7214cRobert Shankin<p>What if the user click event were to instruct appian to systematically fetch and import the document?&nbsp; That way, after the document has been imported into Appian, you can prevent the user from attempting to import the document a 2nd time.</p> <p>For example, a related action button could initiate a process that first imports the document, and then displays a user interface with a document download link.&nbsp; Yes, it would be possible for the user to click that link more than once, but you could use instructions on the interfaces to explain what&#39;s happening. <br /><br />Since it&#39;s Appian that&#39;s interacting with the remote system, you can track the interaction and control whether or not to allow a second import request.&nbsp; This could be by either not showing the related action after the first import, or leave the related action, but after the user clicks it, the interface they see won&#39;t show the link anymore.</p><div style="clear:both;"></div>