How To Fix 5Z079 - Key & is not in customer namespace. Do you still want to copy it?

SAP Error Message - Details

• Message type: E = Error

• Message class: 5Z - IS-HR/PSG Public Sector Payroll - Germany

• Message number: 079

• Message text: Key & is not in customer namespace. Do you still want to copy it?

What causes this issue?

The target key is not in the customer namespace. For this reason, the
copied entries may be overwritten during release upgrades or other
upgrades.

System Response

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

How to fix this error?

If you want to protect your data from being overwritten by SAP, select a
target key in the customer namespace. To find out which keys are in the
customer namespace, use report RDDKOR54.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message 5Z079 - Key & is not in customer namespace. Do you still want to copy it? ?

  The SAP error message 5Z079 indicates that you are trying to copy an object (such as a key, function module, or other development object) that is not in the customer namespace. In SAP, objects are typically categorized into different namespaces, and the customer namespace is reserved for custom developments. The error suggests that the object you are trying to copy is in a standard or non-customer namespace, which may lead to conflicts or issues if copied directly.
  Cause:
  
  Namespace Conflict: The object you are trying to copy is in a standard SAP namespace (like /SAP/ or /BAP/) and not in the customer namespace (usually starts with Z or Y).
  Development Guidelines: SAP has guidelines to prevent overwriting or modifying standard objects directly, which is why the system raises this error.
  
  Solution:
  
  Check the Object: Verify the object you are trying to copy. If it is a standard object, consider whether you really need to copy it or if you can create a new object based on it.
  Create a Custom Version: If you need to modify the functionality, create a new object in the customer namespace (starting with Z or Y) and implement the required changes there.
  Use Enhancements: If applicable, consider using enhancement techniques (like user exits, BAdIs, or enhancement spots) to modify the behavior of standard SAP objects without copying them.
  Consult Documentation: Review SAP documentation or consult with your SAP Basis or development team to understand the implications of copying standard objects.
  
  Related Information:
  
  Namespaces: In SAP, namespaces are used to differentiate between standard SAP objects and customer-specific objects. The customer namespace is reserved for custom developments to avoid conflicts with standard SAP objects.
  Development Guidelines: SAP provides guidelines for development to ensure that custom developments do not interfere with standard functionality.
  Transport Management: If you are working in a transport environment, be cautious about transporting objects from one system to another, especially if they are not in the customer namespace.
  
  If you still want to proceed with copying the object despite the warning, you may need to consult with your SAP Basis team or development team to understand the potential risks and implications.