Let it flow, let it (work)flow: Custom functions in 3 steps

Today we’re adding a little extra brainpower to our workflows. Custom functions let you bring your own logic into Workflow Builder. In this example, we’ll build a simple weather checker: we’ll collect a city from a form step, call an external API with a custom function, and then post the result back to Slack. Three steps, one powerful pattern. Once you learn this, you’ll start seeing endless ways to level up your workflows.