3614512 - Business Catalog SAP_CORE_BC_OM_ET is Missing in Test and Production System

The business catalog SAP_CORE_BC_OM_ET is available only in the Development - Customizing system, but is missing in other environments such as the Development tenant, Test system, and Production system.

SAP S/4HANA Cloud Public Edition

Wrong tenant/system is being used to access Key User Extensibility apps.

The business catalog SAP_CORE_BC_OM_ET is intended for Key Users to perform Output Management tasks, such as creating and maintaining email templates via the "Maintain Email Templates" application.

This catalog is part of the Key User Extensibility scope, which is restricted to specific environments based on the system landscape:

• In a 2-System Landscape, Key User Extensibility is available only in the Test/Quality System.

• In a 3-System Landscape, it is available only in the Customizing Tenant (client 100) of the Development system.

As a result, the business catalog SAP_CORE_BC_OM_ET is not available in the Production system or in other non-customizing tenants, by design.

Refer 3342103 - Key User Extensibility apps are not available or read only - SAP S/4HANA Cloud Public Edition - SAP for Me 

For a detailed comparison between the Customizing Tenant and the Development Tenant, refer to the following blog:

Extensibility in the Development System of a 3-System Landscape

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