First, create the stream you'd like to use for Pagerduty notifications, and subscribe all interested parties to this stream. We recommend the stream name pagerduty. Keep in mind you still need to create the stream first even if you are using this recommendation.

Next, in Pagerduty, select Services under Configuration on the top of the page.

Now navigate to the service you want to integrate with Zulip. From there, click "Add a webhook". Fill in the form like this:

• Name: Zulip
• Endpoint URL: {{ external_api_uri_subdomain }}/v1/external/pagerduty?api_key=abcdefgh&stream=pagerduty