How To Fix USMD1B102 - Data model changes have made parts of the change document irrelevant

SAP Error Message - Details

• Message type: E = Error

• Message class: USMD1B - Meldungen: MDF Anschluss

• Message number: 102

• Message text: Data model changes have made parts of the change document irrelevant

What causes this issue?

Changes to hierarchies have been recorded in the change document.
However, one of the node types of these hierarchies has since been
removed from the data model.

System Response

The changes to the node types that no longer exist are not displayed.

How to fix this error?

If these changes are important for your analysis, you must temporarily
include the node type in the data model again.

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 USMD1B102 - Data model changes have made parts of the change document irrelevant ?

  The SAP error message USMD1B102 indicates that there are changes in the data model that have rendered certain parts of a change document irrelevant. This typically occurs in the context of SAP Master Data Governance (MDG) when changes to the data model (like adding or removing fields, changing data types, etc.) affect the validity of existing change documents.
  Cause:
  
  Data Model Changes: The primary cause of this error is that the underlying data model has been modified after the change document was created. This could include changes to the structure of the master data, such as adding or removing attributes or changing the relationships between entities.
  Inconsistent State: The change document may reference fields or structures that no longer exist or have been altered, leading to inconsistencies.
  
  Solution:
  
  Review Data Model Changes: Check the recent changes made to the data model. Identify what specific changes have been made that could affect the change document.
  Recreate Change Document: If the change document is no longer valid due to the data model changes, you may need to recreate the change document. This involves discarding the old change document and creating a new one that aligns with the current data model.
  Adjust Change Document: If possible, adjust the change document to align with the new data model. This may involve modifying the fields or attributes referenced in the change document.
  Consult Documentation: Refer to SAP documentation or release notes for any specific guidelines on handling data model changes and their impact on change documents.
  Testing: After making the necessary adjustments, test the change document to ensure it processes correctly without errors.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide guidance on handling data model changes in MDG.
  MDG Configuration: Review the configuration settings in your MDG system to ensure they are aligned with the current data model.
  Change Request Management: Understand how change requests are managed in your organization and ensure that all stakeholders are aware of the data model changes to prevent similar issues in the future.
  Training and Documentation: Ensure that users involved in data governance are trained on the implications of data model changes and how to manage change documents effectively.
  
  If the issue persists after following these steps, consider reaching out to SAP support for further assistance.