https://community.appian.com/discussions/f/new-to-appian/18808/is-it-possible-to-call-process-model-through-email-link-external-systemHi All I&#39;m looking for an idea how to call a process model through an email link- I have tried the following way to achieve it... case 1: I first created a process model and then created a webApi which will call the PM, but URL returned by WebApien-USTelligent Community 12https://community.appian.com/thread/73932?ContentTypeID=1Sun, 10 May 2020 09:11:14 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:d863c6c0-074a-4eca-8b52-d9b63037bcadStefan Helzle<p>In general you cannot start a process via an external link. A link in an email or browser does a &quot;GET&quot; operation, meaning it is made to just fetch some information from another system. When you look at how we build APIs in Appian you will notice that the a!startProcess only works in a &quot;POST&quot; enabled API. What you could do, is to forward the user to a landing page where he can start the process by e.g. pushing a button.</p><div style="clear:both;"></div>