https://community.appian.com/discussions/f/rules/25150/a-isusermemberofgroup-throwing-invaliduserexceptionHi All, I am getting error in below expression a!localVariables( local!userName: &quot;xyzUser&quot;, if( isusernametaken(local!userName), a!isUserMemberOfGroup(local!userName, cons!PP_GROUP_CONSTANT), 0 ) ) Error as Expression evaluation error at functionen-USTelligent Community 12https://community.appian.com/thread/97586?ContentTypeID=1Tue, 12 Jul 2022 06:59:14 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:3f8a9e55-68fd-4d3a-87f7-f09d985da0dbPriyanka!<p>Hi Stefan,</p> <p>Please check below code screenshot. its Appian 21.4.&nbsp;</p> <p><img src="/resized-image/__size/640x480/__key/communityserver-discussions-components-files/15/pastedimage1657609170950v2.png" alt=" " /></p><div style="clear:both;"></div>https://community.appian.com/thread/97584?ContentTypeID=1Tue, 12 Jul 2022 06:27:08 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:efa9971d-3aed-4520-84be-fd6377fd15dfStefan Helzle<p>I just did a small test to verify this. isusernametaken() returns true, regardless of whether the user is deactivated or not. a!isUserMemberOfGroup() returns an error for any deactivated user.</p> <p>Appian 22.2.</p><div style="clear:both;"></div>https://community.appian.com/thread/97580?ContentTypeID=1Tue, 12 Jul 2022 04:54:35 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:8f48cd40-33b3-411a-973d-2853c0a63b8cPriyanka!<p>Thanks Peter. Will check on this.</p><div style="clear:both;"></div>https://community.appian.com/thread/97569?ContentTypeID=1Mon, 11 Jul 2022 16:46:15 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:6edc8753-3e82-4d2e-bd55-7ba4313146dcPeter Lewis<p>If you&#39;re seeing exactly the same expression behave differently in different environments then I would suggest opening a support ticket.</p><div style="clear:both;"></div>https://community.appian.com/thread/97566?ContentTypeID=1Mon, 11 Jul 2022 16:20:14 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:28c98c39-2a44-4d70-b4fa-cad452bbbed9Harshit Bumb (Appyzie)<p>I think it is untrue. It works equally well for a deactivated user as well.&nbsp;</p><div style="clear:both;"></div>https://community.appian.com/thread/97565?ContentTypeID=1Mon, 11 Jul 2022 15:38:24 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:773c3cf4-e70d-4569-a3af-72fec5e87072Priyanka!<p>Thanks for reply. Tried this, its still not working.</p><div style="clear:both;"></div>https://community.appian.com/thread/97564?ContentTypeID=1Mon, 11 Jul 2022 15:32:37 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:5e04f7c6-335c-40de-b0e4-0a786db369e6Priyanka!<p>Hi Stefan,</p> <p>Thanks for reply.. but this function is working properly in one of the environment with deactivate user as well and not in other.</p><div style="clear:both;"></div>https://community.appian.com/thread/97563?ContentTypeID=1Mon, 11 Jul 2022 15:28:45 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:9eeaa924-6541-435e-9cff-347235c43a07Priyanka!<p>its 21.4 on both environment.</p><div style="clear:both;"></div>https://community.appian.com/thread/97562?ContentTypeID=1Mon, 11 Jul 2022 14:21:54 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:da8bd07d-bf35-46c2-af05-3b9eb7919028Stefan Helzle<p>Even a deactivated user will return true for isusernametaken(). But&nbsp;a!isUserMemberOfGroup() will fail on that exact user. To check whether a user is deactivated, you will need to user the function isuseractive() out of the people functions plugin.</p><div style="clear:both;"></div>https://community.appian.com/thread/97559?ContentTypeID=1Mon, 11 Jul 2022 12:28:58 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:6e3123b8-c611-411c-a21c-6d63ac5df319Harshit Bumb (Appyzie)<p>I don&#39;t think it is a&nbsp;version issue. What Appian version are you using?</p><div style="clear:both;"></div>https://community.appian.com/thread/97557?ContentTypeID=1Mon, 11 Jul 2022 11:46:04 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:698502d5-0604-474f-83d1-f71197ef4adfTonyMiamiFL<p>I believe that you need to pass the User as a type User by :</p> <p><br /><span>touser(local!userName)</span></p><div style="clear:both;"></div>