https://community.appian.com/discussions/f/rules/17437/validate-document-idIs there a way to validate an Appian document ID before trying to use the document() function on it? document() will fail if passed an invalid Appian document, and todocument() will return a document type even if the ID is not a valid Appian documenten-USTelligent Community 12https://community.appian.com/thread/68758?ContentTypeID=1Mon, 12 Aug 2019 14:31:17 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:3d2c2b41-6157-4b0f-942e-0117040c3c7cMike Schmitt<p>What validation are you wanting to do?&nbsp; Are you talking about a just-uploaded document, or a document ID for a document that may already be in the system if it exists?</p> <p>If it&#39;s the latter, my favorite way is to use the &quot;getContentObjectDetailsById&quot; function (from the Appian object information retriever plug-in), which will return a string value regardless of how valid the ID you pass in is, but when it belongs to a valid document the metadata it passes out can be used to tell for sure.</p><div style="clear:both;"></div>https://community.appian.com/thread/68740?ContentTypeID=1Mon, 12 Aug 2019 06:13:57 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:a73ef1d7-082d-4680-9140-aa34b6ddd5a9Jayapriya Muthu<p>Hi, Please check the function and plugin mentioned in the below thread&nbsp;</p> <p><a href="https://community.appian.com/discussions/f/general/8567/check-weather-document-exists-or-not">community.appian.com/.../check-weather-document-exists-or-not</a></p><div style="clear:both;"></div>