How To Fix CNV_00001346 - Number of parallel update jobs for a table: &1

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_00001 - Message class for CWB settings maintenance programs

• Message number: 346

• Message text: Number of parallel update jobs for a table: &1

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_00001346 - Number of parallel update jobs for a table: &1 ?

  The SAP error message CNV_00001346, which states "Number of parallel update jobs for a table: &1," typically occurs during data migration or data transfer processes, particularly when using the SAP Landscape Transformation (SLT) or SAP Data Services. This error indicates that the number of parallel update jobs for a specific table has exceeded the allowed limit.
  Cause:
  
  Exceeding Parallel Job Limit: The error is triggered when the number of parallel update jobs for a specific table exceeds the maximum limit set in the system configuration. This can happen if multiple processes are trying to update the same table simultaneously.
  Configuration Settings: The system may have specific settings that limit the number of concurrent updates to ensure data integrity and performance.
  Long-Running Transactions: If there are long-running transactions or locks on the table, it can prevent new update jobs from being processed, leading to this error.
  
  Solution:
  
  
  Check and Adjust Configuration:
  
  Review the configuration settings for parallel processing in your SAP system. You may need to adjust the parameters that control the maximum number of parallel update jobs.
  You can check the relevant parameters in transaction RZ10 or RZ11 (for instance, parameters like rdisp/wp_no_btc or rdisp/wp_no_dia).
  
  
  
  Monitor and Optimize Jobs:
  
  Use transaction SM37 to monitor the status of background jobs. Identify any long-running jobs that may be causing the bottleneck and consider optimizing them.
  If possible, reduce the number of parallel jobs being executed for the specific table.
  
  
  
  Increase System Resources:
  
  If your system is under heavy load, consider increasing the resources (CPU, memory) allocated to the SAP application server to handle more parallel jobs.
  
  
  
  Review Locking Mechanisms:
  
  Investigate if there are any locking issues on the table that could be causing delays. Use transaction SM12 to check for locks and resolve any that are unnecessary.
  
  
  
  Batch Processing:
  
  If applicable, consider breaking down the data migration or update process into smaller batches to avoid overwhelming the system with too many parallel jobs.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional insights or patches related to this error.
  Documentation: Review the SAP documentation for the specific tools you are using (e.g., SLT, Data Services) for best practices on managing parallel updates.
  Performance Monitoring: Utilize tools like SAP Solution Manager or transaction ST03N to analyze system performance and identify potential bottlenecks.
  
  By following these steps, you should be able to resolve the CNV_00001346 error and ensure smoother data processing in your SAP environment.