How To Fix /CDBASIS/MSG072 - No free sessions available for parallel processing.

SAP Error Message - Details

• Message type: E = Error

• Message class: /CDBASIS/MSG -

• Message number: 072

• Message text: No free sessions available for parallel processing.

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message /CDBASIS/MSG072 - No free sessions available for parallel processing. ?

  The SAP error message /CDBASIS/MSG072 No free sessions available for parallel processing typically indicates that the system has reached its limit for parallel processing sessions. This can occur in various scenarios, such as when multiple background jobs or parallel processing requests are being executed simultaneously, and the system does not have enough available sessions to handle them.
  Causes:
  
  Session Limit Reached: The maximum number of parallel processing sessions configured in the system has been reached.
  High Load: A sudden spike in background jobs or parallel processing requests can exhaust available sessions.
  Configuration Issues: The system may not be configured optimally for the expected workload.
  Long-Running Jobs: If there are jobs that are taking a long time to complete, they may occupy sessions longer than expected.
  
  Solutions:
  
  
  Increase the Number of Parallel Sessions:
  
  You can increase the number of parallel processing sessions by adjusting the configuration in the SAP system. This can be done in transaction RZ10 or RZ11 by modifying the parameter rdisp/wp_no_dia (for dialog work processes) or rdisp/wp_no_btc (for background work processes).
  Example: If the current value is set to 6, you might increase it to 8 or 10, depending on your system's capacity.
  
  
  
  Monitor and Optimize Background Jobs:
  
  Use transaction SM37 to monitor background jobs and identify any long-running jobs that may be holding up sessions.
  Consider optimizing these jobs or scheduling them during off-peak hours.
  
  
  
  Check System Performance:
  
  Use transaction ST03N to analyze system performance and identify bottlenecks.
  Ensure that the system has adequate resources (CPU, memory, etc.) to handle the workload.
  
  
  
  Review Job Scheduling:
  
  Review the scheduling of jobs in transaction SM36 to ensure that they are not all set to run at the same time, which can lead to session exhaustion.
  
  
  
  Restart the System:
  
  In some cases, restarting the SAP system can free up sessions that may be stuck or not released properly.
  
  
  
  Consult SAP Notes:
  
  Check for any relevant SAP Notes that may provide additional guidance or patches related to this issue.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SM37: Monitor Background Jobs
  SM36: Define Background Job
  RZ10/RZ11: Profile Parameters
  ST03N: Workload Analysis
  
  
  
  SAP Documentation: Refer to the official SAP documentation for more details on configuring work processes and managing background jobs.
  
  
  Performance Tuning: Consider engaging with SAP Basis administrators for performance tuning and best practices tailored to your specific environment.
  
  
  By following these steps, you should be able to resolve the /CDBASIS/MSG072 No free sessions available for parallel processing error and improve the overall performance of your SAP system.