I am trying to create an email that will go to an non Appian user. I am putting 2 links/buttons in the email for them to click and in turn would like it to start a process. First, is this even possible? Second, in my HTLM code, do I set mode to cors or no-cors? Third, where do I put the authorization in the HTML code? I set up a service account in the admin console and added it to the user group.
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As far as I remember you cannot start a process in Appian by providing a link or buttons in email.
I advise you to create a portal and then attach the link of the portal in the email to the non Appian user. Who in turn from portal can trigger the process you wish.
Or you can even start a process by sending an email to the process model, if it aligns with your use case.
https://community.appian.com/discussions/f/process/28194/run-a-process-model-through-a-link-link-button-in-the-email
May be this thread will help you