The SAP Fiori Launchpad works by integrating with SAP S/4HANA to provide a unified and personalized experience for users. When a user logs into the Fiori Launchpad, they are presented with a list of apps that are relevant to their role and responsibilities. The apps are organized into tiles and displayed on a single page, making it easy for users to find and launch the app they need.

The Fiori Launchpad uses role-based access control to determine which apps are displayed for each user, ensuring that each user sees only the apps that they are authorized to use. This helps to maintain security and compliance.

Once a user launches an app from the Fiori Launchpad, the app communicates with the backend SAP S/4HANA system to retrieve or update data. The user can then perform the necessary tasks, such as creating a sales order, recording time, or approving an invoice. The app then updates the SAP S/4HANA system with the changes made by the user.

In summary, the SAP Fiori Launchpad acts as a centralized gateway to SAP Fiori apps, providing a user-friendly and personalized experience for employees and improving their productivity.