How To Fix /LSIERP/TQ018 - Could not lock row containing payment lot &1, item no. &2, table &3

SAP Error Message - Details

• Message type: E = Error

• Message class: /LSIERP/TQ -

• Message number: 018

• Message text: Could not lock row containing payment lot &1, item no. &2, table &3

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /LSIERP/TQ018 - Could not lock row containing payment lot &1, item no. &2, table &3 ?

  The SAP error message /LSIERP/TQ018 indicates that the system is unable to lock a specific row in the database that contains information about a payment lot and item. This typically occurs in scenarios where multiple users or processes are trying to access or modify the same data simultaneously, leading to a conflict.
  Cause:
  
  Concurrent Access: Another user or process is currently accessing or modifying the same row in the database, which prevents your transaction from obtaining a lock on that row.
  Long-running Transactions: If a transaction takes too long to complete, it can hold locks for an extended period, causing other transactions to fail when they attempt to access the same data.
  Database Locking Mechanism: SAP uses a locking mechanism to ensure data integrity. If a lock is already in place, any subsequent attempts to access that data will result in this error.
  
  Solution:
  
  Retry the Operation: Often, simply waiting a moment and then retrying the operation can resolve the issue, especially if it was caused by a temporary lock.
  Check for Active Sessions: Use transaction codes like SM12 (to view and manage locks) to check if there are any active locks on the payment lot or item in question. If you find a lock that is no longer needed, you may be able to delete it (with caution).
  Optimize Long-running Transactions: If you identify that a particular transaction is taking too long, consider optimizing it to reduce the time it holds locks.
  Coordinate with Users: If multiple users are working on the same data, coordinate with them to avoid conflicts. This may involve scheduling tasks or using different data sets.
  Review Custom Code: If the error occurs frequently, review any custom code or enhancements that may be causing excessive locking or long-running transactions.
  
  Related Information:
  
  Transaction Codes:
  
  SM12: To view and manage locks.
  SM21: To check the system log for any related errors or warnings.
  ST22: To check for dumps that may provide additional context.
  
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  Performance Monitoring: Use transaction ST03N to analyze performance and identify long-running transactions that may be causing locking issues.
  
  If the problem persists after trying these solutions, it may be necessary to involve your SAP Basis team or consult SAP support for further assistance.