How To Fix FDT_CORE122 - Name &1 belongs to unchangeable namespace

SAP Error Message - Details

• Message type: E = Error

• Message class: FDT_CORE - Formula & Derivation Tool: Core

• Message number: 122

• Message text: Name &1 belongs to unchangeable namespace

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message FDT_CORE122 - Name &1 belongs to unchangeable namespace ?

  The SAP error message FDT_CORE122 indicates that you are trying to create or modify an object (like a field, data element, or other components) in a namespace that is considered unchangeable. This typically occurs in the context of SAP's Field Data Tool (FDT) or similar development environments where certain namespaces are reserved or protected to maintain system integrity.
  Cause:
  
  Unchangeable Namespace: The object you are trying to create or modify belongs to a namespace that is predefined by SAP or is otherwise protected from changes. This is often the case with standard SAP objects or components that are part of the core system.
  Development Environment: You might be working in a development environment where certain namespaces are restricted to prevent accidental changes to critical system components.
  
  Solution:
  
  Use a Custom Namespace: If you need to create or modify an object, ensure that you are using a custom namespace that is designated for your development. Custom namespaces typically start with a specific prefix (like Z or Y) that indicates they are user-defined.
  Check Object Ownership: Verify if the object you are trying to modify is indeed part of a protected namespace. You can do this by checking the object’s properties or documentation.
  Consult Documentation: Review SAP documentation or guidelines regarding namespaces and the use of the Field Data Tool to understand which namespaces are changeable and which are not.
  Seek Authorization: If you believe you need to modify an object in a protected namespace, consult with your SAP Basis or security team to see if you can obtain the necessary permissions or if there is an alternative approach.
  Use Transport Requests: If you are working in a development environment, ensure that you are using transport requests correctly to manage changes to objects in your custom namespace.
  
  Related Information:
  
  Namespaces in SAP: SAP uses namespaces to organize objects and prevent naming conflicts. Standard SAP objects are typically in the SAP namespace, while custom developments are placed in user-defined namespaces.
  Field Data Tool (FDT): This tool is used for managing field data and configurations in SAP applications. Understanding its functionality and limitations is crucial for effective use.
  SAP Notes and Community: Check SAP Notes for any specific guidance related to the FDT_CORE122 error, as well as community forums where other users may have encountered and resolved similar issues.
  
  If you continue to face issues, consider reaching out to your SAP support team or consulting with an SAP expert for further assistance.