How To Fix USMD1B101 - 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: 101

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

What causes this issue?

Changes to attributes have been recorded in the change document.
However, these attributes have since been removed from the data model.

System Response

The changes to the attributes 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 attribute 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 USMD1B101 - Data model changes have made parts of the change document irrelevant ?

  The SAP error message USMD1B101 indicates that there have been changes to 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  Recreate Change Document: If the change document is no longer valid due to the data model changes, you may need to recreate the change document.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:
  
  Deleting the existing change document if it is no longer relevant.
  Creating a new change document that reflects the current data model.
  
  
  Adjust Data Model: If the changes to the data model were not intended or if they were made in error, consider reverting those changes or adjusting them to maintain compatibility with existing change documents.
  Consult Documentation: Refer to SAP documentation or release notes for any specific guidelines on handling data model changes and their impact on change documents.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide guidance on best practices for managing data model changes in MDG.
  MDG Configuration: Ensure that your MDG configuration is aligned with the current data model and that any changes are properly documented and communicated to all stakeholders.
  Testing: After making changes, conduct thorough testing to ensure that the new data model works as expected and that change documents can be created and processed without errors.
  
  If the issue persists after following these steps, it may be beneficial to reach out to SAP support for further assistance, providing them with detailed information about the changes made and the context in which the error occurred.