When an SAP Fiori app is not visible on the launchpad despite the user having the correct business role, the issue lies within the configuration of the role itself. The troubleshooting process involves using the "Maintain Business Roles" app (D) as the central tool. Within this app, two primary areas must be checked:

1. Content: The business catalog (A) that contains the Fiori app's tile and target mapping must be assigned to the role. If the catalog is missing, the app definition is not available to the user.

2. Layout: In the modern Fiori launchpad, visibility is controlled by spaces and pages (C). The app must be placed on a page, which in turn must be part of a space, and both must be assigned to the business role.

B. Check the restrictions for the role.

Restrictions control data-level access within an app (e.g., which company codes are visible). While severe authorization failures can sometimes prevent a tile from loading, it's not the primary reason for a tile not being displayed on the launchpad.

E. Check the business role template.

A business role template is only a starting point for creating a custom role. Once the role is created and assigned, the template is no longer relevant to the user's access.

1. SAP S/4HANA Cloud, Identity and Access Management Documentation: The official documentation outlines the structure of a business role. It specifies that a business role is composed of business catalogs (for content), spaces and pages (for layout), and restrictions (for authorizations). The "Maintain Business Roles" app is the designated tool for managing these components. (Refer to SAP Help Portal: Maintain Business Roles and How to Structure an SAP Fiori Launchpad).

2. SAP Help Portal - Troubleshooting Missing Tiles: The guide "How to analyze missing tiles in the SAP Fiori launchpad" for SAP S/4HANA Cloud explicitly lists the key checks:

Verify the business role assignment.

Verify the business catalog assignment to the role. (Confirms A)

Verify the space and page assignment to the role. (Confirms C)

The entire process is managed via the "Maintain Business Roles" app. (Confirms D)

(See SAP Knowledge Base Article 2927348 - How to analyze missing tiles in the SAP Fiori launchpad for SAP S/4HANA Cloud)