How To Fix USMD1248 - Package &1 resides within SAP namespace

SAP Error Message - Details

• Message type: E = Error

• Message class: USMD1 - Datenmodel

• Message number: 248

• Message text: Package &1 resides within SAP namespace

What causes this issue?

You must not assign enhancements that have a Customizing include to
packages that reside in the SAP namespace.

System Response

The entry cannot be saved.,,,,

How to fix this error?

Enter a package that belongs to a namespace that is reserved for you. As
an alternative, you can enter a local package or a test package.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message USMD1248 - Package &1 resides within SAP namespace ?

  The SAP error message USMD1248 indicates that a package you are trying to work with resides within the SAP namespace. This typically occurs in the context of SAP Master Data Governance (MDG) or when dealing with custom developments in the SAP system.
  Cause:
  The error arises because the package you are attempting to use is part of the SAP namespace (which usually starts with "SAP" or "SAP_"). In SAP, certain packages are reserved for SAP's own development, and modifications or certain operations on these packages are restricted to maintain system integrity and stability.
  Solution:
  To resolve this error, consider the following steps:
  
  
  Check Package Ownership: Verify if the package you are trying to use is indeed an SAP package. You can do this by checking the package attributes in the SAP system.
  
  
  Use a Custom Package: If you need to create or modify objects, consider using a custom package that you have created (which typically starts with your own namespace, e.g., "Z" or "Y"). This allows you to freely develop and modify without restrictions.
  
  
  Review Development Guidelines: Ensure that you are following SAP's development guidelines. If you are trying to extend or modify standard SAP objects, consider using enhancement techniques such as BAdIs, user exits, or enhancement spots instead of directly modifying the standard objects.
  
  
  Consult Documentation: Refer to SAP documentation or notes related to the specific package or functionality you are working with. There may be specific guidelines or best practices outlined by SAP.
  
  
  Contact SAP Support: If you believe that you need to work with the package in question and cannot find a workaround, consider reaching out to SAP support for guidance.
  
  
  Related Information:
  
  Namespaces: In SAP, namespaces are used to differentiate between SAP standard objects and custom developments. Custom developments should always be done in a custom namespace to avoid conflicts and issues.
  Development Objects: Familiarize yourself with the types of development objects in SAP (e.g., function modules, classes, tables) and the appropriate ways to extend or modify them.
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional context.
  
  By following these steps, you should be able to address the USMD1248 error and continue with your development work in SAP.