How To Fix /SCWM/MEDI080 - &1 reference items not processed due to locking errors

SAP Error Message - Details

• Message type: E = Error

• Message class: /SCWM/MEDI -

• Message number: 080

• Message text: &1 reference items not processed due to locking errors

Self-Explanatory Message

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• What is the cause and solution for SAP error message /SCWM/MEDI080 - &1 reference items not processed due to locking errors ?

  The SAP error message /SCWM/MEDI080 &1 reference items not processed due to locking errors typically occurs in the context of the Extended Warehouse Management (EWM) module. This error indicates that certain reference items could not be processed because they are locked by another transaction or process. Here’s a breakdown of the cause, potential solutions, and related information:
  Cause:
  
  Locking Mechanism: SAP uses a locking mechanism to prevent data inconsistencies. If a transaction is currently processing a reference item, it will lock that item, preventing other transactions from accessing it until the first transaction is completed.
  Long-running Transactions: If a transaction takes too long to complete, it can lead to other transactions being unable to access the locked items.
  Deadlocks: In some cases, two or more transactions may be waiting for each other to release locks, leading to a deadlock situation.
  System Performance Issues: High system load or performance issues can exacerbate locking problems.
  
  Solution:
  
  Identify the Lock: Use transaction code SM12 to check for existing locks. You can filter by user or object to find out which transaction is holding the lock.
  Release Locks: If you identify a lock that is no longer needed, you can manually release it from the SM12 transaction. However, be cautious when doing this, as it may lead to data inconsistencies if the transaction holding the lock is still in progress.
  Optimize Transactions: Review the transactions that are causing locks. If they are taking too long, consider optimizing them to reduce processing time.
  Increase System Resources: If the issue is related to system performance, consider increasing the resources available to your SAP system (e.g., CPU, memory).
  Batch Processing: If applicable, consider processing items in smaller batches to reduce the likelihood of locking issues.
  Check for Deadlocks: Use transaction SM21 to check the system log for any deadlock situations and resolve them accordingly.
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to locking issues in EWM. There may be specific patches or updates that address known issues.
  Performance Monitoring: Use transaction ST03N to monitor system performance and identify any bottlenecks that may be contributing to locking issues.
  Consult Documentation: Review the SAP EWM documentation for best practices regarding transaction management and locking behavior.
  
  If the problem persists after trying the above solutions, it may be beneficial to consult with your SAP Basis team or reach out to SAP support for further assistance.