The flows you've worked with up to this point are largely automated (such as for detecting new files or emails) or triggered by a user action (such as the button flow to send a template email). In this chapter, we're going to begin exploring flows that require additional user action to continue, such as an approval flow.

Approval flows require a special service that's used to hold state information pertinent to the flow. Common Data Service, or CDS, is the foundation for more complex flows such as approvals.

Specifically, this chapter will cover the following topics:

• Understanding Common Data Service
• Creating an approval flow
• Responding to approvals

By the end of this chapter, you'll have an understanding of Common Data Service and will be able to create basic approval flows.

Let's dive in!