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How To Fix WA752 - Error synchronizing table buffers


SAP Error Message - Details

  • Message type: E = Error

  • Message class: WA - Messages from Workflow Event Manager

  • Message number: 752

  • Message text: Error synchronizing table buffers

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  • 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 WA752 - Error synchronizing table buffers ?

    SAP Error Message:
    WA752 - Error synchronizing table buffers


    Cause

    The error WA752 occurs when SAP encounters a problem while trying to synchronize the table buffers across different application servers in a distributed SAP system. SAP uses table buffering to improve performance by caching table data in the application server memory. When a table is updated, the buffer must be synchronized across all instances to maintain data consistency.

    Common causes include:

    • Network communication issues between application servers.
    • Inconsistencies or corruption in the table buffer.
    • Problems with the enqueue or lock mechanism.
    • Buffer synchronization requests timing out or failing.
    • Issues with the SAP kernel or database connectivity.
    • High system load causing delays in buffer synchronization.

    Explanation

    In a distributed SAP environment, when a buffered table is updated on one application server, the system sends a synchronization request to other servers to update their buffers. If this synchronization fails, the WA752 error is raised.


    Solution / Troubleshooting Steps

    1. Check Network Connectivity:

      • Verify that all application servers can communicate with each other without network interruptions.
      • Check for firewall or network issues that might block communication on required ports.
    2. Review System Logs:

      • Use transaction SM21 to check system logs for related errors or warnings.
      • Look for enqueue or lock errors that might indicate locking problems.
    3. Check Table Buffer Settings:

      • Use transaction SE11 to check if the table is buffered.
      • If buffering is not required, consider disabling buffering for the problematic table as a temporary workaround.
    4. Restart Application Servers:

      • Sometimes, restarting the affected application servers can clear buffer inconsistencies.
    5. Check SAP Kernel and Patch Level:

      • Ensure the SAP kernel is up to date and consistent across all application servers.
      • Apply any relevant SAP Notes or patches related to buffer synchronization.
    6. Database Consistency:

      • Check database logs and consistency.
      • Run database consistency checks if needed.
    7. SAP Notes and Support:

      • Search for SAP Notes related to WA752.
      • Example SAP Note: Note 000752 (if available) or others related to buffer synchronization.
      • Contact SAP Support if the problem persists.

    Related Information

    • Table Buffering in SAP:
      Table buffering improves performance by caching table data in the application server memory. Buffer synchronization is critical to ensure data consistency.

    • Transactions:

      • SE11: Data Dictionary (to check table buffering settings)
      • SM21: System log
      • SM12: Lock entries
      • SM13: Update requests
      • SM50/SM66: Work process monitoring
    • SAP Notes:
      Always check the SAP Support Portal for the latest notes related to buffer synchronization errors.


    Summary

    Aspect Details
    Error WA752 - Error synchronizing table buffers
    Cause Failure in synchronizing buffered table data across application servers
    Common Reasons Network issues, locking problems, buffer corruption, kernel/database issues
    Solution Check network, review logs, verify buffering settings, restart servers, update kernel, consult SAP Notes
    Related Transactions SE11, SM21, SM12, SM13, SM50/SM66

    If you provide more context (e.g., system version, specific table, or recent changes), I can help tailor the troubleshooting further.

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