https://community.appian.com/discussions/f/general/22288/wrong-expression-rule-in-online-course-advanced-expressions-1-lesson-3-exerciseHi community, Don&#39;t know where to report this, so used the forum. In the exercise there is a variable declared like: local!purchaseOrder: rule!VOF_GetPurchaseOrderLineItemsByEntityId(), Instead of rule!VOF_GetPurchaseOrderLineItems Record ByEntityIden-USTelligent Community 12https://community.appian.com/thread/89440?ContentTypeID=1Tue, 04 Jan 2022 04:37:12 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:9da7ce0b-0417-4dc7-a337-f8b9a7a2ee6cvinayp0002<p>That might be a typo error. You can write the same at&nbsp;<a href="mailto:support@appian.com">Appian Technical Support</a></p><div style="clear:both;"></div>https://community.appian.com/thread/89439?ContentTypeID=1Mon, 03 Jan 2022 21:15:28 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:f6017828-84fd-4bdf-9239-de53bb4b7c85Harm Kolvoort<p>Faced same issue in my recently created<span>&nbsp;Community Edition Site. Not a big deal, but would be good to fix it.&nbsp;</span></p><div style="clear:both;"></div>