How To Fix RSO_CTC128 - &1 mapped in UI of BDLS task is not a valid BW source system

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 128

• Message text: &1 mapped in UI of BDLS task is not a valid BW source system

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSO_CTC128 - &1 mapped in UI of BDLS task is not a valid BW source system ?

  The SAP error message RSO_CTC128 typically indicates that there is an issue with the mapping of a BW source system during the BDLS (Batch Data Load Simulator) task. This error suggests that the system is unable to recognize the specified source system as valid for the BW (Business Warehouse) environment.
  Cause:
  
  Invalid Source System Mapping: The source system specified in the BDLS task may not be correctly defined or may not exist in the BW system.
  Configuration Issues: There may be configuration issues in the BW system that prevent it from recognizing the source system.
  Transport Issues: If the source system was recently transported or changed, it may not have been properly activated or configured in the target system.
  Data Consistency Issues: There may be inconsistencies in the data that prevent the system from recognizing the source system.
  
  Solution:
  
  
  Check Source System Configuration:
  
  Go to the BW system and check the configuration of the source system in transaction RSA1 (Data Warehousing Workbench).
  Ensure that the source system is correctly defined and active.
  
  
  
  Validate Source System in BDLS:
  
  Review the BDLS task settings to ensure that the source system is correctly mapped.
  If necessary, re-map the source system in the BDLS task.
  
  
  
  Check Transport Logs:
  
  If the source system was recently transported, check the transport logs for any errors or warnings that may indicate issues with the transport.
  
  
  
  Consistency Check:
  
  Perform a consistency check on the BW system to identify any inconsistencies that may be affecting the source system recognition.
  
  
  
  Recreate Source System:
  
  If the source system is not valid or cannot be fixed, consider recreating the source system in the BW environment.
  
  
  
  Consult SAP Notes:
  
  Check the SAP Support Portal for any relevant SAP Notes that may address this specific error message or provide additional troubleshooting steps.
  
  
  
  Related Information:
  
  BDLS: The BDLS tool is used for converting logical system names in the SAP system landscape. It is important to ensure that all mappings are correct before executing the BDLS task.
  BW Source Systems: In BW, source systems can be SAP or non-SAP systems from which data is extracted. Proper configuration is crucial for data extraction and reporting.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as RSA1 (Data Warehousing Workbench), RSCUSTV10 (BW Customizing), and RSPC (Process Chain Management) for managing and troubleshooting BW source systems.
  
  If the issue persists after following these steps, it may be beneficial to engage SAP support for further assistance.