How To Fix /SAPAPO/TSM279 - Parallel processing is not allowed

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/TSM -

• Message number: 279

• Message text: Parallel processing is not allowed

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/TSM279 - Parallel processing is not allowed ?

  The SAP error message /SAPAPO/TSM279 Parallel processing is not allowed typically occurs in the context of SAP Advanced Planning and Optimization (APO) when a certain process or transaction is attempted to be executed in parallel, but the system does not allow it due to specific constraints or settings.
  Cause:
  
  Single-threaded Process: The process you are trying to execute is designed to run in a single-threaded manner. This is often the case for processes that modify data or require a consistent state.
  Configuration Settings: The system may be configured to disallow parallel processing for certain transactions or processes to prevent data inconsistencies or conflicts.
  Locking Mechanisms: The system may have locking mechanisms in place that prevent multiple instances of the same process from running simultaneously.
  Resource Constraints: The system may be configured to limit resource usage, which can lead to restrictions on parallel processing.
  
  Solution:
  
  Check Process Settings: Review the settings for the specific process you are trying to execute. Ensure that it is not configured to run in parallel.
  Sequential Execution: If the process must be executed in a specific order, ensure that any previous instances of the process have completed before starting a new one.
  Review Custom Code: If you are using custom code or enhancements, check to see if there are any settings or logic that enforce single-threaded execution.
  System Configuration: Consult with your SAP Basis or system administrator to review the configuration settings related to parallel processing. They may need to adjust settings or parameters to allow for parallel execution if appropriate.
  Transaction Logs: Check transaction logs or system messages for additional context or errors that may provide more insight into why parallel processing is being blocked.
  
  Related Information:
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error or provide additional troubleshooting steps.
  Documentation: Review the official SAP documentation for APO and the specific transaction or process you are working with to understand its requirements and limitations.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions or workarounds may have been shared.
  
  If the issue persists after trying the above solutions, it may be beneficial to contact SAP support for further assistance.