A condition module can be used when there are split-off points in your funnel, where the visitor has multiple routes that they can take.

By clicking "View" on a condition module you can add a name, change its icon, and change its color. Click the Done button once you're finished making changes.

An example would be after a user opts in, they may be given the choice to visit a sales page, go directly to the order page, or if they leave the confirmation page immediately, they may receive a retargeting sequence through email. Here's an example of how this might look: