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How To Fix MC600 - System error in lock management


MC600 - Overview

  • Message type: E = Error

  • Message class: MC - Aggregate: views, matchcodes, lock objects

  • Message number: 600

  • Message text: System error in lock management

  • Show details Hide details
  • What causes this issue?

    An internal error was found in the SAP lock management system when
    attempting to lock an object by calling an ENQUEUE function module.

    System Response

    The SAP system cannot enter the required lock correctly into the lock
    table managed in the enqueue server and the ENQUEUE function module
    therefore triggers an exception. If the application cannot process this
    exception, the active transaction is canceled automatically.

    How to fix this error?

    The most frequent reason for the error message is that you can no longer
    access the enqueue server. This may be caused by the enqueue server not
    running.

    Error message extract from SAP system. Copyright SAP SE.


MC600 - Details

  • The SAP error message MC600, which indicates a "System error in lock management," typically arises when there are issues related to the locking mechanism in the SAP system. This can occur due to various reasons, including:
    Causes:
    
    Database Lock Issues: The database may have encountered a problem with locks, which can happen if there are deadlocks or if the lock table is full.
    System Resource Limitations: Insufficient memory or other system resources can lead to failures in managing locks.
    Corrupted Lock Entries: Sometimes, lock entries can become corrupted, leading to errors when the system tries to access or release them.
    Network Issues: If there are network problems, it may affect the communication between the application server and the database, leading to lock management errors.
    
    Configuration Issues: Incorrect configuration settings in the SAP system can also lead to lock management problems. Solutions: Check Lock Entries: Use transaction code SM12 to check for existing lock entries. You can delete any

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