How To Fix CNV_CDMC_CA029 - Not many work processes available; enter a value greater than 1

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_CDMC_CA - CDMC Clearing Analysis

• Message number: 029

• Message text: Not many work processes available; enter a value greater than 1

What causes this issue?

You have chosen to perform the remote comparison in parallel mode but
have not specified a sufficient number of work processes.

System Response

It is not possible to perform parallel execution without having at
least two work processes.

How to fix this error?

Enter a value greater than 1.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_CDMC_CA029 - Not many work processes available; enter a value greater than 1 ?

  The SAP error message CNV_CDMC_CA029 indicates that there are not enough work processes available in the SAP system to perform the requested operation. This typically occurs during data migration or conversion processes, particularly when using the SAP Conversion Tools (like the SAP S/4HANA Migration Cockpit).
  Cause:
  
  Insufficient Work Processes: The SAP system has a limited number of work processes configured, and the current workload exceeds the available processes.
  System Configuration: The configuration of the SAP instance may not be optimized for the tasks being performed, leading to a bottleneck.
  High Load: Other processes or transactions may be consuming the available work processes, leaving insufficient resources for the current operation.
  System Limits: The system may have reached its configured limits for concurrent processes.
  
  Solution:
  
  
  Increase Work Processes:
  
  You can increase the number of work processes in the SAP system profile. This is done by modifying the instance profile parameters (e.g., rdisp/wp_no_dia, rdisp/wp_no_btc, etc.) to allow for more dialog or background work processes.
  After making changes, restart the SAP instance for the changes to take effect.
  
  
  
  Check Current Work Process Usage:
  
  Use transaction SM50 (or SM66 for global view) to monitor the current work processes and see if they are being utilized effectively.
  Identify any long-running or stuck processes that may be consuming resources unnecessarily.
  
  
  
  Optimize Background Jobs:
  
  Review and optimize any background jobs that are running concurrently. You may need to reschedule jobs to reduce the load during peak times.
  
  
  
  System Performance Tuning:
  
  Analyze the overall system performance and consider tuning other parameters that may affect work process availability.
  Ensure that the hardware resources (CPU, memory) are adequate for the workload.
  
  
  
  Consult SAP Notes:
  
  Check for any relevant SAP Notes that may provide additional guidance or patches related to this error.
  
  
  
  Related Information:
  
  
  Transaction Codes: 
  
  SM50: Monitor work processes.
  SM66: Monitor work processes across the entire system.
  RZ10: Change instance profile parameters.
  
  
  
  SAP Documentation: Refer to the official SAP documentation for detailed information on configuring work processes and performance tuning.
  
  
  SAP Community: Engage with the SAP Community forums for insights and experiences from other users who may have encountered similar issues.
  
  
  By addressing the work process availability and optimizing the system configuration, you should be able to resolve the CNV_CDMC_CA029 error and proceed with your data migration or conversion tasks.