How To Fix USMD1B021 - Data model &1: Internal table &2 activated

SAP Error Message - Details

• Message type: E = Error

• Message class: USMD1B - Meldungen: MDF Anschluss

• Message number: 021

• Message text: Data model &1: Internal table &2 activated

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 USMD1B021 - Data model &1: Internal table &2 activated ?

  The SAP error message USMD1B021 typically indicates that there is an issue with the activation of an internal table related to a data model in the SAP Master Data Governance (MDG) environment. This error can occur during various operations, such as data modeling, data replication, or data activation processes.
  Cause:
  The error message "Data model &1: Internal table &2 activated" suggests that there is a problem with the internal table associated with the specified data model. This could be due to several reasons, including:
  
  Data Model Configuration Issues: The data model may not be configured correctly, leading to inconsistencies in the internal tables.
  Transport Issues: If the data model was transported from one system to another, there may be inconsistencies or missing components.
  Database Locking: The internal table may be locked by another process, preventing the activation from completing successfully.
  Data Integrity Issues: There may be issues with the data integrity that prevent the internal table from being activated.
  System Bugs: There could be bugs in the SAP system that affect the activation process.
  
  Solution:
  To resolve the USMD1B021 error, you can take the following steps:
  
  
  Check Configuration: Review the configuration of the data model to ensure that all settings are correct. Make sure that all required fields and relationships are properly defined.
  
  
  Check Transport Logs: If the data model was recently transported, check the transport logs for any errors or warnings that may indicate issues with the transport.
  
  
  Release Locks: If you suspect that the internal table is locked, you can use transaction code SM12 to check for and release any locks that may be preventing the activation.
  
  
  Data Consistency Check: Perform a data consistency check to identify any issues with the data that may be causing the activation to fail. You can use transaction codes like SLG1 to check for application logs related to the error.
  
  
  Re-activate the Data Model: Try to deactivate and then reactivate the data model to see if that resolves the issue.
  
  
  Check for SAP Notes: Look for any relevant SAP Notes that may address this specific error. SAP frequently releases notes that provide fixes or workarounds for known issues.
  
  
  Contact SAP Support: If the issue persists after trying the above steps, consider reaching out to SAP Support for further assistance. Provide them with detailed information about the error, including the data model name and any relevant logs.
  
  
  Related Information:
  
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as:
  
  SM12: To check and manage locks.
  SLG1: To view application logs.
  SE11: To view and manage database tables.
  SE80: To access the Object Navigator for data model management.
  
  
  
  Documentation: Review SAP documentation related to Master Data Governance and data modeling for best practices and troubleshooting tips.
  
  
  Community Forums: Consider checking SAP Community forums or other online resources where similar issues may have been discussed.
  
  
  By following these steps, you should be able to diagnose and resolve the USMD1B021 error effectively.