How To Fix RSO_CTC121 - Delta queues in destination &1 successfully updated from BW

SAP Error Message - Details

• Message type: E = Error

• Message class: RSO_CTC - Message class for CTC related messages

• Message number: 121

• Message text: Delta queues in destination &1 successfully updated from BW

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSO_CTC121 - Delta queues in destination &1 successfully updated from BW ?

  The SAP error message RSO_CTC121 indicates that there is an issue with the delta queues in the context of data extraction from SAP BW (Business Warehouse). This message typically arises when there are problems with the delta process, which is responsible for transferring only the changed data from the source system to the BW system.
  Cause:
  
  
  Delta Queue Issues: The delta queue may not be properly updated or may contain inconsistencies. This can happen due to various reasons, such as:
  
  Network issues during data transfer.
  Locks on the delta queue.
  Data inconsistencies or errors in the source system.
  Configuration issues in the data source or extraction process.
  
  
  
  Data Source Configuration: If the data source is not correctly configured, it may lead to problems in the delta extraction process.
  
  
  System Performance: High load on the system or performance issues can also lead to delays or failures in updating the delta queues.
  
  
  Solution:
  
  
  Check Delta Queue Status: Use transaction code RSA7 to monitor the delta queue status. Ensure that the delta queue is not locked and that there are no errors.
  
  
  Reinitialize Delta: If the delta queue is inconsistent, you may need to reinitialize the delta for the data source. This involves:
  
  Deleting the existing delta queue.
  Reinitializing the delta process from the source system.
  
  
  
  Check for Locks: Use transaction code SM12 to check for any locks on the delta queue. If there are locks, you may need to resolve them.
  
  
  Review Data Source Configuration: Ensure that the data source is correctly configured in the BW system. Check the settings in transaction RSA1 under the Data Sources section.
  
  
  Monitor System Performance: Check the performance of both the source and BW systems. If there are performance issues, consider optimizing the system or scheduling the delta loads during off-peak hours.
  
  
  Check Logs: Review the logs for any additional error messages or warnings that may provide more context about the issue. You can check the logs in transaction SLG1.
  
  
  Consult SAP Notes: Look for relevant SAP Notes that may address specific issues related to the error message RSO_CTC121. SAP frequently updates its knowledge base with solutions for known issues.
  
  
  Related Information:
  
  
  Transaction Codes:
  
  RSA7: Monitor delta queue status.
  SM12: Check for locks on database tables.
  RSA1: Data Warehousing Workbench for data source configuration.
  SLG1: Application log for error messages.
  
  
  
  SAP Documentation: Refer to the official SAP documentation for detailed information on delta processes and troubleshooting steps.
  
  
  SAP Community: Engage with the SAP Community forums for insights and solutions shared by other users who may have encountered similar issues.
  
  
  By following these steps, you should be able to diagnose and resolve the issue related to the RSO_CTC121 error message in SAP BW.