How To Fix MDG_DT_DATA_MODEL098 - Object cannot be deleted; &1 not in Z* or Y* namespace

SAP Error Message - Details

• Message type: E = Error

• Message class: MDG_DT_DATA_MODEL - Messages for the Configuration Workbench Model Access API

• Message number: 098

• Message text: Object cannot be deleted; &1 not in Z* or Y* 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.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message MDG_DT_DATA_MODEL098 - Object cannot be deleted; &1 not in Z* or Y* namespace ?

  The SAP error message MDG_DT_DATA_MODEL098 indicates that an object you are trying to delete is not in the appropriate namespace. In SAP, objects that are created in the standard namespace (which is typically the default namespace) cannot be deleted if they are not part of a custom namespace (usually prefixed with "Z" or "Y"). 
  Cause:
  
  Namespace Restriction: The error occurs because the object you are trying to delete is not in a custom namespace (Z or Y). SAP restricts the deletion of standard objects to prevent accidental loss of critical system components.
  Object Type: The object type you are trying to delete may be a standard object that is part of the SAP system and is not meant to be deleted.
  
  Solution:
  
  Check Object Namespace: Verify the namespace of the object you are trying to delete. If it is a standard object, you will not be able to delete it.
  Use Custom Objects: If you need to delete an object, consider creating a custom version of the object in a Z or Y namespace, and then perform your operations on that custom object.
  Consult Documentation: Review the SAP documentation or consult with your SAP Basis or development team to understand the implications of deleting objects and to ensure that you are following best practices.
  Alternative Actions: If deletion is not possible, consider whether you can deactivate or modify the object instead of deleting it.
  
  Related Information:
  
  Namespaces in SAP: In SAP, namespaces are used to differentiate between standard SAP objects and custom objects. Standard objects are typically in the default namespace, while custom objects are created in Z or Y namespaces.
  MDG (Master Data Governance): This error is related to SAP Master Data Governance, which manages master data across the organization. Understanding the governance rules and processes can help in managing objects effectively.
  SAP Notes and Support: If you encounter persistent issues or need further assistance, consider checking SAP Notes or reaching out to SAP Support for guidance specific to your system version and configuration.
  
  By following these steps, you should be able to address the error and understand the limitations regarding object deletion in SAP.