How To Fix CPPEMIG149 - BOM could not be locked

SAP Error Message - Details

• Message type: E = Error

• Message class: CPPEMIG - Migration of BOM and Routing to iPPE

• Message number: 149

• Message text: BOM could not be locked

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CPPEMIG149 - BOM could not be locked ?

  The SAP error message CPPEMIG149 indicates that a Bill of Materials (BOM) could not be locked during a migration or processing task. This error typically arises in scenarios where multiple users or processes are trying to access or modify the same BOM simultaneously, leading to a conflict.
  Causes:
  
  Concurrent Access: Another user or process is currently accessing or modifying the BOM, preventing your session from locking it.
  System Locking Mechanism: SAP uses a locking mechanism to ensure data integrity. If a lock is already in place, your request to lock the BOM will fail.
  Long-running Transactions: If a transaction is taking too long to complete, it may hold the lock longer than expected.
  Database Issues: Sometimes, underlying database issues can lead to locking problems.
  
  Solutions:
  
  Check for Active Sessions: Use transaction codes like SM12 (to view and delete locks) to check if there are any active locks on the BOM. If you find a lock that is no longer needed, you can delete it (ensure you have the necessary authorizations).
  Wait and Retry: If the lock is held by another user, you may need to wait until that user completes their transaction and releases the lock.
  Review Long-running Processes: Identify any long-running transactions that may be holding locks and address them accordingly.
  System Monitoring: Use transaction codes like SM66 to monitor active processes in the system and identify any potential issues.
  Consult Basis Team: If the issue persists, it may be necessary to involve your SAP Basis team to investigate any underlying system or database issues.
  
  Related Information:
  
  Transaction Codes:
  
  SM12: Display and manage locks.
  SM66: Global work process overview.
  SE11: Data dictionary to check the structure of BOM tables.
  
  
  SAP Notes: Check SAP Notes for any known issues or patches related to BOM locking.
  Documentation: Review SAP documentation on BOM management and locking mechanisms for further insights.
  
  If the problem continues after trying the above solutions, it may be beneficial to reach out to SAP support for more specialized assistance.