How To Fix MPE_PLAN_MEC023 - Enqueue on table MPE_MEC_EBOM_INC failed

SAP Error Message - Details

• Message type: E = Error

• Message class: MPE_PLAN_MEC - Message Class for Manufacturing Engineering Cockpit

• Message number: 023

• Message text: Enqueue on table MPE_MEC_EBOM_INC failed

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message MPE_PLAN_MEC023 - Enqueue on table MPE_MEC_EBOM_INC failed ?

  The SAP error message MPE_PLAN_MEC023 indicates that there was an issue with an enqueue operation on the table MPE_MEC_EBOM_INC. This typically occurs when a process tries to lock a table or a record for exclusive access, but the lock cannot be obtained due to various reasons, such as another process holding the lock or a system issue.
  Causes:
  
  Lock Conflicts: Another transaction or user may already have a lock on the table or specific records within it.
  Long-Running Transactions: If a transaction is taking too long to complete, it may hold locks longer than expected, causing other transactions to fail.
  Deadlocks: Two or more processes may be waiting for each other to release locks, leading to a deadlock situation.
  System Performance Issues: High system load or performance issues can lead to delays in lock acquisition and release.
  Configuration Issues: Incorrect configuration of the enqueue server or related settings may lead to locking issues.
  
  Solutions:
  
  
  Identify Lock Holders: Use transaction SM12 to check for existing locks on the table MPE_MEC_EBOM_INC. Identify the user or process holding the lock and take appropriate action (e.g., ask the user to release the lock or terminate the process if necessary).
  
  
  Monitor Long-Running Transactions: Use transaction SM66 or SM50 to monitor active processes and identify any long-running transactions that may be causing lock contention.
  
  
  Check for Deadlocks: Use transaction SM21 to check the system log for any deadlock situations. If deadlocks are detected, analyze the involved transactions and optimize them to avoid such situations.
  
  
  Increase System Resources: If the issue is related to system performance, consider increasing the resources allocated to the SAP system (e.g., CPU, memory).
  
  
  Review Configuration: Ensure that the enqueue server is properly configured and that there are no issues with the SAP kernel or database settings.
  
  
  Retry the Operation: If the issue is transient, simply retrying the operation after a short wait may resolve the problem.
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SM12: Display and manage locks.
  SM21: System log.
  SM50: Process overview.
  SM66: Global process overview.
  
  
  
  SAP Notes: Check for any relevant SAP Notes that may address specific issues related to the MPE_MEC_EBOM_INC table or enqueue errors.
  
  
  Documentation: Review SAP documentation for best practices on managing locks and performance tuning.
  
  
  If the problem persists after trying the above solutions, it may be necessary to involve your SAP Basis team or consult SAP support for further assistance.