How To Fix RSO_CTC120 - Error when updating delta queues in source system &1 from BW

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 120

• Message text: Error when updating delta queues in source system &1 from BW

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSO_CTC120 - Error when updating delta queues in source system &1 from BW ?

  The SAP error message RSO_CTC120 typically occurs when there is an issue with updating delta queues in the source system from SAP BW (Business Warehouse). This error can arise due to various reasons, and understanding the cause is crucial for finding an appropriate solution.
  Cause of RSO_CTC120 Error
  
  
  Delta Queue Issues: The delta queue in the source system may be inconsistent or corrupted. This can happen if there are issues with the data extraction process or if the delta queue has not been properly initialized.
  
  
  Authorization Issues: The user or service account used for the data extraction may not have the necessary authorizations to access the delta queue or the source system.
  
  
  Network Issues: Connectivity problems between the BW system and the source system can lead to failures in updating the delta queues.
  
  
  Data Consistency: If there are inconsistencies in the data or if the data model has changed (e.g., changes in the source system structure), it can lead to errors during delta updates.
  
  
  System Configuration: Incorrect configuration settings in either the BW system or the source system can also lead to this error.
  
  
  Solutions to RSO_CTC120 Error
  
  
  Check Delta Queue Status: 
  
  Go to the source system and check the status of the delta queue. Ensure that it is active and not in a locked state.
  Use transaction codes like RSA7 to monitor the delta queue.
  
  
  
  Reinitialize Delta: 
  
  If the delta queue is corrupted, you may need to reinitialize the delta extraction. This involves setting up the delta extraction again from scratch.
  Use transaction RSA5 to delete the delta queue and then reinitialize it.
  
  
  
  Check Authorizations: 
  
  Ensure that the user or service account has the necessary authorizations to read from the delta queue in the source system.
  
  
  
  Network Connectivity: 
  
  Verify that there are no network issues between the BW system and the source system. Check for firewalls, VPNs, or other network configurations that might be blocking communication.
  
  
  
  Data Consistency: 
  
  Review any recent changes in the source system that might affect the data model. Ensure that the data structures are consistent with what BW expects.
  
  
  
  System Logs: 
  
  Check the system logs in both the BW and source systems for any additional error messages or warnings that could provide more context about the issue.
  
  
  
  Consult SAP Notes: 
  
  Look for relevant SAP Notes that might address this specific error. SAP frequently updates their knowledge base with solutions for known issues.
  
  
  
  Contact SAP Support: 
  
  If the issue persists after trying the above solutions, consider reaching out to SAP Support for further assistance.
  
  
  
  Related Information
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as RSA7, RSA5, and SM37 (for monitoring jobs) to help diagnose and resolve the issue.
  Documentation: Review SAP documentation related to data extraction and delta queues for best practices and troubleshooting steps.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed.
  
  By following these steps, you should be able to identify the cause of the RSO_CTC120 error and implement a suitable solution.