How To Fix SDMI012 - Enqueue on &1 failed (FOREIGN LOCK) - a Migration is already in progress

SAP Error Message - Details

• Message type: E = Error

• Message class: SDMI - Messages of SDMI

• Message number: 012

• Message text: Enqueue on &1 failed (FOREIGN LOCK) - a Migration is already in progress

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SDMI012 - Enqueue on &1 failed (FOREIGN LOCK) - a Migration is already in progress ?

  The SAP error message SDMI012 indicates that an enqueue operation has failed due to a foreign lock, specifically because a migration process is already in progress. This typically occurs in the context of SAP systems when there is an attempt to perform an operation that requires exclusive access to certain resources, but those resources are currently locked by another process.
  Cause:
  
  Migration in Progress: The most common cause of this error is that a migration process (such as a system upgrade, data migration, or transport) is currently running. During this time, certain resources are locked to prevent conflicts.
  Long-running Transactions: If a transaction is taking longer than expected, it may hold locks longer than necessary, causing other operations to fail.
  Incorrect Lock Management: Sometimes, locks may not be released properly due to system issues or bugs, leading to foreign lock situations.
  
  Solution:
  
  Check Migration Status: Verify if a migration process is indeed in progress. You can do this by checking the transaction logs or using transaction codes like SM37 (to check job status) or SM21 (to check system logs).
  Wait for Completion: If a migration is in progress, the simplest solution is to wait for it to complete. Once the migration is finished, the locks should be released, and you can retry the operation.
  Identify and Terminate Long-running Processes: If you suspect that a long-running transaction is causing the lock, you can identify it using transaction SM66 (global work process overview) or SM50 (local work process overview). If necessary, you can terminate the offending process, but be cautious as this may lead to data inconsistencies.
  Check Lock Entries: Use transaction SM12 to check for lock entries. You can see which user or process is holding the lock and take appropriate action if needed.
  System Restart: In some cases, if the locks are not being released properly, a system restart may be necessary. However, this should be done with caution and typically as a last resort.
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  
  Related Information:
  
  Transaction Codes:
  
  SM37: Job Monitoring
  SM21: System Log
  SM50: Work Process Overview
  SM66: Global Work Process Overview
  SM12: Lock Entries
  
  
  SAP Notes: Always check for relevant SAP Notes that may provide fixes or workarounds for specific issues related to enqueue locks and migrations.
  Documentation: Review SAP documentation related to system migrations and enqueue management for best practices and troubleshooting steps.
  
  If the issue persists after following these steps, it may be necessary to engage SAP support for further assistance.