How To Fix RSQU309 - Real-time deletion of LUWs started DataSource &1, target system &2

SAP Error Message - Details

• Message type: E = Error

• Message class: RSQU - S-API after 4.0: Delta Queue, Real Time Update

• Message number: 309

• Message text: Real-time deletion of LUWs started DataSource &1, target system &2

Self-Explanatory Message

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• What is the cause and solution for SAP error message RSQU309 - Real-time deletion of LUWs started DataSource &1, target system &2 ?

  The SAP error message RSQU309 indicates that there is an issue with the real-time deletion of LUWs (Logical Unit of Work) for a specific DataSource in a target system. This error typically arises in the context of SAP BW (Business Warehouse) or SAP SLT (SAP Landscape Transformation) when there are problems with data replication or data deletion processes.
  Cause:
  
  DataSource Configuration Issues: The DataSource may not be properly configured for real-time data replication.
  Target System Connectivity: There may be connectivity issues between the source and target systems, preventing the deletion process from completing.
  Authorization Issues: The user or service account executing the deletion may lack the necessary authorizations to perform the operation.
  Data Consistency Issues: There may be inconsistencies in the data that prevent the deletion from being executed successfully.
  Technical Errors: There could be underlying technical issues, such as system performance problems or database locks.
  
  Solution:
  
  Check DataSource Configuration: Verify that the DataSource is correctly set up for real-time data replication. Ensure that all necessary settings are in place.
  Test Connectivity: Ensure that the connection between the source and target systems is stable and functioning. You can use transaction codes like SM59 to check RFC connections.
  Review Authorizations: Check the authorizations of the user or service account that is attempting to perform the deletion. Ensure that it has the necessary permissions to delete LUWs.
  Monitor Data Consistency: Use transaction codes like RSA1 to monitor the data and check for any inconsistencies that may need to be resolved.
  Check System Logs: Review system logs (transaction SM21) and application logs (transaction SLG1) for any additional error messages or warnings that could provide more context on the issue.
  Restart the Process: If the issue seems to be transient, you may try restarting the deletion process or the relevant data replication process.
  Consult SAP Notes: Look for relevant SAP Notes that may address this specific error message or provide patches or updates that could resolve the issue.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as RSA1 (Data Warehousing Workbench), SLT (for Landscape Transformation), and SM59 (RFC Destinations).
  SAP Documentation: Refer to SAP Help documentation for detailed information on DataSources, real-time data replication, and troubleshooting techniques.
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  
  If the problem persists after trying the above solutions, it may be necessary to involve your SAP Basis team or open a support ticket with SAP for further assistance.