How To Fix /PF1/MSG_RECALL001 - Process already running. Parallel Processing not possible.

SAP Error Message - Details

• Message type: E = Error

• Message class: /PF1/MSG_RECALL -

• Message number: 001

• Message text: Process already running. Parallel Processing not possible.

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /PF1/MSG_RECALL001 - Process already running. Parallel Processing not possible. ?

  The SAP error message /PF1/MSG_RECALL001 Process already running. Parallel Processing not possible. typically indicates that a particular process or job is already executing in the background, and the system does not allow another instance of the same process to run concurrently. This is a common scenario in SAP systems where certain jobs or processes are designed to be single-threaded to avoid data inconsistencies or resource contention.
  Causes:
  
  Concurrent Execution: The process you are trying to start is already running. This could be due to a previous instance of the same job that has not yet completed.
  Job Scheduling: The job might be scheduled to run at specific intervals, and you are attempting to start it manually while it is still executing.
  System Configuration: Some processes are configured to allow only one instance to run at a time for performance or data integrity reasons.
  
  Solutions:
  
  Check Running Processes: Use transaction codes like SM37 (Job Monitoring) to check if the job is currently running. If it is, you may need to wait for it to complete.
  Terminate the Running Job: If the job is stuck or taking too long, you can terminate it from SM37 by selecting the job and choosing the option to cancel it. Be cautious with this approach, as it may lead to data inconsistencies.
  Review Job Scheduling: If the job is scheduled, review the scheduling settings to ensure that it does not overlap with other instances. Adjust the schedule if necessary.
  Increase Parallel Processing Capacity: If your business process requires multiple instances to run concurrently, consider reviewing the configuration settings for parallel processing in your SAP system. This may involve adjusting parameters in the relevant configuration settings.
  Consult Documentation: Check SAP Notes or documentation related to the specific process you are trying to run for any known issues or recommendations.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with transaction codes like SM37 (Job Monitoring), SM50 (Process Overview), and SM66 (Global Process Overview) to monitor and manage background jobs.
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address specific issues related to the process you are working with.
  System Performance: If you frequently encounter this issue, it may be worth analyzing the overall performance of your SAP system and the specific job to identify potential bottlenecks.
  
  If the problem persists after trying the above solutions, it may be beneficial to consult with your SAP Basis team or SAP support for further assistance.