How To Fix CNV_MBT_46438 - In package &1, PEB tables of PEB &2 are locked

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_MBT_46 - PCL message class

• Message number: 438

• Message text: In package &1, PEB tables of PEB &2 are locked

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_MBT_46438 - In package &1, PEB tables of PEB &2 are locked ?

  The SAP error message CNV_MBT_46438 indicates that there is a locking issue with the PEB (Project Environment Block) tables in the context of a data migration or conversion process. This error typically arises during the execution of a migration project, particularly when using the SAP S/4HANA Migration Cockpit or similar tools.
  Cause:
  The error occurs when the system attempts to access or modify PEB tables that are currently locked. This can happen for several reasons:
  
  Concurrent Processes: Another process or user is currently accessing or modifying the same PEB tables, leading to a lock.
  Long-Running Transactions: A previous transaction that has not yet been completed may still hold a lock on the tables.
  System Configuration: Certain configurations or settings in the SAP system may lead to unexpected locking behavior.
  
  Solution:
  To resolve the CNV_MBT_46438 error, you can take the following steps:
  
  
  Check for Locks:
  
  Use transaction code SM12 to check for existing locks on the PEB tables. Look for entries related to the specific PEB you are working with.
  If you find locks that are no longer needed, you can delete them (ensure that you have the necessary authorizations and that it is safe to do so).
  
  
  
  Identify the Locking Process:
  
  Use transaction code SM66 or SM50 to identify which processes are currently running and may be holding locks on the PEB tables.
  If you find a long-running process that is causing the lock, you may need to wait for it to complete or, if appropriate, terminate it.
  
  
  
  Retry the Operation:
  
  After resolving any locks, retry the operation that triggered the error.
  
  
  
  Check for Configuration Issues:
  
  Review the configuration settings related to the migration process to ensure that there are no settings that could lead to excessive locking.
  
  
  
  Consult SAP Notes:
  
  Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide additional guidance.
  
  
  
  Contact SAP Support:
  
  If the issue persists and you are unable to resolve it, consider reaching out to SAP Support for further assistance.
  
  
  
  Related Information:
  
  PEB Tables: These tables are part of the data migration framework in SAP and are used to manage the data migration process.
  Transaction Codes: Familiarize yourself with transaction codes like SM12 (for lock entries), SM50 (for process overview), and SM66 (for global process overview) to help diagnose locking issues.
  Migration Cockpit: If you are using the SAP S/4HANA Migration Cockpit, ensure that you are following the recommended procedures and guidelines for data migration.
  
  By following these steps, you should be able to address the CNV_MBT_46438 error and continue with your migration process.