How To Fix RSRB1021 - Data mode & is being used

SAP Error Message - Details

• Message type: E = Error

• Message class: RSRB1 -

• Message number: 021

• Message text: Data mode & is being used

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSRB1021 - Data mode & is being used ?

  The SAP error message RSRB1021 typically indicates that a data model is currently in use, which prevents certain operations from being performed on it. This error often arises in the context of SAP BW (Business Warehouse) or SAP BW/4HANA when trying to delete, modify, or perform other actions on a data model that is actively being utilized.
  Cause:
  
  Active Usage: The data model (e.g., InfoProvider, DSO, or CompositeProvider) is currently being accessed or utilized by a report, query, or another process.
  Locks: There may be locks on the data model due to ongoing data loads, queries being executed, or other transactions that are using the model.
  User Sessions: Other users may be accessing the data model, which can lead to conflicts when trying to make changes.
  
  Solution:
  
  
  Check Active Sessions: Use transaction codes like SM66 (Global Work Process Overview) or SM12 (Display and Delete Locks) to identify any active sessions or locks on the data model. If you find any, you may need to wait for those sessions to complete or coordinate with the users to release the locks.
  
  
  Stop Data Loads: If there are ongoing data loads, you may need to stop them before attempting to modify the data model. This can be done through the Data Warehousing Workbench or relevant transaction codes.
  
  
  Check Queries: Ensure that no queries are currently running against the data model. You can check this in the Query Monitor (transaction RSRT).
  
  
  Wait for Completion: If the data model is being used for a scheduled job or process, you may need to wait until that job completes before making changes.
  
  
  Consult Documentation: Review SAP documentation or notes related to the specific data model you are working with for any additional guidance or best practices.
  
  
  Contact Support: If the issue persists and you cannot identify the cause, consider reaching out to SAP support for further assistance.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as RSRT (Query Monitor), SM66 (Global Work Process Overview), and SM12 (Display and Delete Locks).
  SAP Notes: Check for any SAP Notes related to the specific error message or data model you are working with, as they may provide additional insights or solutions.
  Performance Monitoring: Regularly monitor the performance and usage of your data models to prevent similar issues in the future.
  
  By following these steps, you should be able to resolve the RSRB1021 error and successfully manage your data models in SAP.