https://community.appian.com/discussions/f/general/21338/events-in-appianI have just started exploring event management part of appian and I have few doubts, 1. If we configure start node in process model with receive message event with config &#39;External to Process&#39; it would mean that once message arrives from an ext systemen-USTelligent Community 12https://community.appian.com/thread/83262?ContentTypeID=1Thu, 01 Jul 2021 15:22:53 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:4d2c173c-18b8-4eeb-b4ea-977109198269Peter Lewis<p>Agreed - keep in mind that it isn&#39;t even possible to accept events from external systems if you&#39;re using Appian Cloud. If you&#39;re on-premise, there&#39;s some additional configuration you need to set up:&nbsp;<a href="https://docs.appian.com/suite/help/latest/Working_with_the_Java_Messaging_Service.html">https://docs.appian.com/suite/help/latest/Working_with_the_Java_Messaging_Service.html</a></p> <p>From my experience, REST APIs are far more prevalent than JMS and should be used over JMS Messaging if at all possible.</p><div style="clear:both;"></div>https://community.appian.com/thread/83244?ContentTypeID=1Thu, 01 Jul 2021 13:31:17 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:ce9c16ed-0197-4429-b4ad-940032fd1ceaStefan Helzle<p>If you can avoid messaging, then avoid it. To start a process from external, a Web API is the way to go.</p><div style="clear:both;"></div>