Step 1: Click into the form that needs routing, and navigate to Settings > Emails & Actions.
Step 2: Select which type of routing you want to set up. You can customize routing through Notification Emails, Confirmation Emails, webhooks, and integrations.
Step 3: Click the appropriate Add button based on the type of routing you want, and fill in the necessary information on the panel that pops up.
To learn more about data routing, read this help article.