How To Fix /STTPEC/MC_MD134 - An error occured during locking (/STTPEC/MAT_PRP)

SAP Error Message - Details

• Message type: E = Error

• Message class: /STTPEC/MC_MD -

• Message number: 134

• Message text: An error occured during locking (/STTPEC/MAT_PRP)

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /STTPEC/MC_MD134 - An error occured during locking (/STTPEC/MAT_PRP) ?

  The SAP error message /STTPEC/MC_MD134 An error occurred during locking (/STTPEC/MAT_PRP) typically indicates that there was an issue with the locking mechanism in the SAP system when trying to access or modify material master data or related objects. This error can occur in various scenarios, such as during data processing, updates, or when multiple users are trying to access the same data simultaneously.
  Causes:
  
  Concurrent Access: Multiple users or processes are trying to access or modify the same material master data at the same time, leading to a locking conflict.
  Long-Running Transactions: A transaction that takes too long to complete may hold a lock for an extended period, causing other transactions to fail.
  System Performance Issues: If the system is under heavy load or experiencing performance issues, it may not be able to handle locking requests properly.
  Configuration Issues: Incorrect configuration of the locking mechanism or related settings in the SAP system can lead to this error.
  Database Locks: Locks at the database level may also cause this issue if they are not released properly.
  
  Solutions:
  
  Wait and Retry: If the error is due to concurrent access, waiting for a few moments and then retrying the operation may resolve the issue.
  Check Lock Entries: Use transaction code SM12 to check for existing lock entries. If you find locks that are no longer needed, you can delete them (ensure you have the necessary authorizations).
  Analyze Long-Running Transactions: Use transaction code SM66 or SM50 to monitor active processes and identify any long-running transactions that may be holding locks.
  Review System Performance: Check system performance metrics and consider optimizing the system if it is under heavy load.
  Consult Basis Team: If the issue persists, it may be necessary to involve the SAP Basis team to investigate potential configuration issues or database locks.
  Check for Updates: Ensure that your SAP system is up to date with the latest patches and updates, as these may contain fixes for known issues.
  
  Related Information:
  
  Transaction Codes:
  
  SM12: Display and manage lock entries.
  SM50: Monitor active processes.
  SM66: Global overview of processes.
  
  
  SAP Notes: Check SAP Notes related to locking issues for specific guidance or patches that may address the problem.
  Documentation: Review SAP documentation on locking mechanisms and material master data processing for a deeper understanding of how locks are managed in the system.
  
  If the problem continues after trying the above solutions, it may be beneficial to reach out to SAP support for further assistance.