How To Fix RD107 - System cannot be read due to lock

SAP Error Message - Details

• Message type: E = Error

• Message class: RD - CO-PA Connection to SAP BW

• Message number: 107

• Message text: System cannot be read due to lock

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RD107 - System cannot be read due to lock ?

  The SAP error message RD107, which states "System cannot be read due to lock," typically occurs when a user or process attempts to access a system or resource that is currently locked by another user or process. This can happen in various scenarios, such as when a job is running, a transaction is being processed, or a system resource is being accessed exclusively.
  Causes:
  
  Concurrent Access: Another user or process is currently accessing the same resource, leading to a lock.
  Long-Running Transactions: A transaction that takes a long time to complete may hold a lock on the system.
  System Jobs: Background jobs or batch processes that are running may lock certain resources.
  Database Locks: Locks at the database level can also cause this error if a transaction is holding a lock on a table or record.
  
  Solutions:
  
  Wait and Retry: Often, the simplest solution is to wait for the lock to be released. If the lock is held by a long-running transaction, it may complete soon.
  Identify the Lock: Use transaction codes like SM12 (for lock entries) to identify which user or process is holding the lock. You can then decide whether to wait or take further action.
  Terminate the Lock: If you have the necessary authorizations, you can delete the lock entry in SM12. However, be cautious with this approach, as it may lead to data inconsistency if the process holding the lock is still running.
  Check Background Jobs: Use transaction SM37 to check for any background jobs that might be causing the lock. If a job is stuck, you may need to terminate it.
  Review System Performance: If locks are a frequent issue, it may be worth reviewing system performance and optimizing long-running transactions or processes.
  Consult Basis Team: If the issue persists, it may be necessary to involve your SAP Basis team to investigate further, especially if it involves database-level locks.
  
  Related Information:
  
  Transaction Codes:
  
  SM12: Display and manage lock entries.
  SM37: Monitor background jobs.
  SM21: Check system logs for any related errors or warnings.
  
  
  Documentation: Refer to SAP Notes and documentation for specific guidance related to your version of SAP, as the behavior may vary.
  Performance Tuning: Consider reviewing and optimizing your system's performance to reduce the occurrence of locks.
  
  Always ensure that you have the necessary authorizations and that you understand the implications of terminating locks or jobs in your SAP environment.