Integrating ServiceNow with Power Automate via REST API

In this article, we’ll explore the integration process of ServiceNow with Power Automate using the REST API and OAuth 2.0 Resource Owner Password Credentials, accompanied by an illustrative example — retrieving Service Request details from ServiceNow using Power Automate.

Power Automate includes a built-in ServiceNow connector. In this blog post, we’ll explore an alternative method for establishing a connection with ServiceNow.

Prerequisites:

1. ServiceNow Instance: Access to a ServiceNow instance with the necessary permissions to create and manage API integrations.
2. Power Automate Account: A Microsoft Power Automate account to create and manage automated workflows.

Step 1: Register OAuth Application in ServiceNow

1. Start by logging into your ServiceNow instance.
2. Search for “Application Registry” and select the corresponding option.

3. Click on “New”

4. Select “Create an OAuth API endpoint for external clients.”