Integrate Appian With Outlook Calendar

I tried "Send meeting request" smart service. It failed saying that "Your message wasn't delivered because the recipient's e-mail provider rejected it.The following organization rejected your message:" How do we handle this issue? Do we have to request for server? If so, how do we do? 

Are you using graph API to  make the call to Outlook or is the request made to on-premise exchange?

I tried to make call to Outlook on cloud premises. I am trying in 19.1 version

Try the graph API method you will need to create 2 integration items 1. That would get the Bearer token that Azure generates and 2. To consume that token and send request back to Azure /Outlook. Check my post and response i was able to get the outlook Calendars into Appian https://community.appian.com/discussions/f/integrations/13751/outlook-integration-error

Try the graph API method you will need to create 2 integration items 1. That would get the Bearer token that Azure generates and 2. To consume that token and send request back to Azure /Outlook. Check my post and response i was able to get the outlook Calendars into Appian https://community.appian.com/discussions/f/integrations/13751/outlook-integration-error