How To Fix RSPM105 - Locking of process &1 was refused by external tool (e.g. DTP)

SAP Error Message - Details

• Message type: E = Error

• Message class: RSPM - BW: Request Status and Process Management

• Message number: 105

• Message text: Locking of process &1 was refused by external tool (e.g. DTP)

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSPM105 - Locking of process &1 was refused by external tool (e.g. DTP) ?

  The SAP error message RSPM105 indicates that the locking of a process (such as a Data Transfer Process, or DTP) was refused by an external tool. This typically occurs in the context of data extraction, transformation, and loading (ETL) processes within SAP BW (Business Warehouse) or SAP BW/4HANA environments.
  Cause:
  
  External Tool Interference: The error often arises when an external tool (like a third-party ETL tool or another SAP process) is trying to access the same data or process that is already locked by another operation.
  Process Conflicts: If multiple processes are trying to run simultaneously and access the same resources, it can lead to locking issues.
  Configuration Issues: Incorrect configuration of the DTP or the data source can also lead to locking problems.
  Long-Running Processes: If a process is taking too long to complete, it may hold onto locks longer than expected, causing subsequent processes to fail.
  
  Solution:
  
  Check Running Processes: Use transaction codes like SM37 to check for any long-running or stuck processes that may be holding locks. If you find any, consider terminating them if they are not needed.
  Review External Tools: If you are using external ETL tools, ensure they are not trying to access the same data simultaneously. Coordinate the execution of these tools to avoid conflicts.
  Adjust DTP Settings: Review the settings of the DTP to ensure that it is configured correctly. Check for any settings related to locking and parallel processing.
  Increase Timeout Settings: If the issue is due to long-running processes, consider increasing the timeout settings for the DTP or the external tool.
  Monitor System Performance: Ensure that your SAP system has adequate resources (CPU, memory, etc.) to handle the processes being executed. Performance bottlenecks can lead to longer processing times and locking issues.
  Consult Logs: Check the application logs (transaction SLG1) for more detailed error messages that can provide insights into what might be causing the locking issue.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide patches and updates that could resolve underlying issues.
  Documentation: Review SAP documentation related to DTPs and locking mechanisms in BW to better understand how to manage and configure these processes.
  Community Forums: Engage with SAP community forums or support channels where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to diagnose and resolve the RSPM105 error effectively.