Summary
Go to Zapier > Create new Zap
1st Zap, choose "Webhooks by Zapier"
Select "Catch Hook"
Copy hook url
Go to Novocall > Settings > Integrations > New Webhooks
Select Event
Add the newly copied hook to "Target URL"
In Zapier, test your zap. At the same time, test your Event on your widget (Eg. Schedule a call)
2nd Zap, choose your Action App
Set your steps