https://community.appian.com/discussions/f/general/39850/executing-javascript-on-application-loadHi all, I&#39;m working on a scenario where, upon opening the Appian application in the user&#39;s browser, we need to execute JavaScript to retrieve an XML file containing contextual data from external Proteo 4 applications. The goal is to use this data toen-USTelligent Community 12https://community.appian.com/thread/152061?ContentTypeID=1Fri, 17 Oct 2025 11:11:26 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:5fa485bf-a9f7-4d79-b815-da9df400d9fcShubham Aware<p>First you might already know that, You can&#39;t run JavaScript in interfaces.<br />I would recommend give a try,&nbsp;Use Integration to call Proteo 4 API with the Id from URL query parameter. Parse XML to JSON in the integration or expression rule.<br /><a href="https://docs.appian.com/suite/help/25.3/url-parameters.html">https://docs.appian.com/suite/help/25.3/url-parameters.html#</a></p><div style="clear:both;"></div>https://community.appian.com/thread/152060?ContentTypeID=1Fri, 17 Oct 2025 11:08:50 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:0de2dd67-9a8a-4b47-bbcc-a62afe72a87cHarsha Sharma<p>You might want to explore Appian RPA to listen to window events and then fetch the XML content. RPA can help get the data into Appian which you can use further in workflow.&nbsp;</p><div style="clear:both;"></div>https://community.appian.com/thread/152057?ContentTypeID=1Fri, 17 Oct 2025 10:51:25 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:8cbd6767-4fa7-4c54-ae01-303c38db3366Stefan Helzle<p>This would require a custom component plugin.</p><div style="clear:both;"></div>