Dynatrace AutomationEngine and Workflows enable users to build complex workflows with features such as conditions and loops, allowing for data fetching from external systems, notifications, and ticket creation. To enhance integration with third-party systems, the Dynatrace App Toolkit facilitates the creation of custom workflow actions, thereby expanding AutomationEngine's capabilities. The process involves setting up a Dynatrace environment, ensuring access to the necessary tools like the most recent LTS version of Node.js, and using an IDE such as VS Code. Users are guided through creating an app that queries electricity prices from an API and constructing a custom workflow action with specific input parameters. The guide includes steps to implement and test this action within the Dynatrace environment, addressing potential issues such as blocked requests, and concludes with instructions on processing the data and deploying the app.