Activity class parameter keys must be unique across custom and non custom parameters.https://community.appian.com/discussions/f/process/28556/activity-class-parameter-keys-must-be-unique-across-custom-and-non-custom-parametersHi All, Am getting error message stating Activity class parameter keys must be unique across custom and non custom parameters after clicking validate process model. Can any one let me know how to troubleshoot this error suggestion? Thanks in advaen-USTelligent Community 12RE: Activity class parameter keys must be unique across custom and non custom parameters.https://community.appian.com/thread/112110?ContentTypeID=1Tue, 02 May 2023 10:54:05 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:02702a6c-c1c2-40d6-a510-badf5e279eb9sanchitg0002<p>Can you please click on the error message in message window and check the error is in which node and share the configuration of that node?</p><div style="clear:both;"></div>RE: Activity class parameter keys must be unique across custom and non custom parameters.https://community.appian.com/thread/112108?ContentTypeID=1Tue, 02 May 2023 10:50:17 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:06e549cd-8220-4be4-aa6e-441e6f862bf4Stefan Helzle<p>It seems like you added a variable at one of the node&#39;s data-&gt;input tab&nbsp;whose name is already in use.</p><div style="clear:both;"></div>