How To Fix CM_MDG_BS_CLF_GEN021 - Classification error occurred; no data changed

SAP Error Message - Details

• Message type: E = Error

• Message class: CM_MDG_BS_CLF_GEN - Classification Message Class

• Message number: 021

• Message text: Classification error occurred; no data changed

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CM_MDG_BS_CLF_GEN021 - Classification error occurred; no data changed ?

  The SAP error message CM_MDG_BS_CLF_GEN021 indicates that a classification error occurred during a Master Data Governance (MDG) process, specifically stating that "no data changed." This typically means that the system attempted to classify an object, but the classification process did not result in any changes to the data.
  Causes:
  
  No Changes Made: The most straightforward cause is that the classification data being processed is identical to what already exists in the system, leading to no changes.
  Incorrect Configuration: There may be issues with the classification settings or rules that prevent the system from recognizing changes.
  Data Integrity Issues: There could be underlying data integrity issues that prevent the classification from being applied correctly.
  Authorization Issues: The user may not have the necessary authorizations to make changes to the classification data.
  Technical Issues: There could be bugs or technical issues in the MDG system or related components.
  
  Solutions:
  
  Verify Data Changes: Check the data being classified to ensure that there are actual changes being made. If the data is the same as what is already in the system, no changes will occur.
  Review Configuration: Examine the classification configuration settings in the MDG system to ensure they are set up correctly. This includes checking classification types, attributes, and rules.
  Check for Data Integrity: Ensure that the data being classified is valid and does not have any integrity issues. This may involve running data validation checks.
  Authorization Check: Verify that the user performing the classification has the necessary authorizations to make changes to the classification data.
  Consult Logs: Check the application logs (transaction SLG1) for any additional error messages or warnings that may provide more context about the issue.
  System Update: Ensure that the SAP system is up to date with the latest patches and updates, as this may resolve any known bugs related to classification.
  Contact SAP Support: If the issue persists after checking the above points, consider reaching out to SAP support for further assistance.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as MDGIMG for configuration and SLG1 for logs.
  Documentation: Review SAP documentation related to Master Data Governance and classification processes for best practices and troubleshooting steps.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.