Which tool should be used to automate a new business process?

Flow Designer is the right tool for automating a new business process within the ServiceNow platform. It is designed specifically to create, execute, and manage automated workflows that enhance business processes without the need for extensive scripting. Flow Designer provides a user-friendly interface that allows users to build flows using various elements like triggers, actions, and conditions, which help in visualizing the automation logic.

The advantage of using Flow Designer lies in its no-code/low-code approach, making it accessible to users who may not have a deep technical background. It supports integration with other parts of ServiceNow and external systems, making it versatile for a wide range of automation scenarios.

In contrast, Workflow is an older automation tool in ServiceNow that is being replaced by Flow Designer for new development. While it can still be used, Flow Designer offers more modern capabilities and flexibility. Service Portal is primarily a user interface for interacting with ServiceNow, while Application Navigator is a tool used to explore applications and modules within ServiceNow, but neither of these tools is designed for process automation directly.