How To Fix BON_ENH_MESS012 - Processing is currently blocked by another session

SAP Error Message - Details

• Message type: E = Error

• Message class: BON_ENH_MESS - Message Class Extended Rebate

• Message number: 012

• Message text: Processing is currently blocked by another session

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message BON_ENH_MESS012 - Processing is currently blocked by another session ?

  The SAP error message BON_ENH_MESS012 indicates that a particular process or transaction is currently blocked because another session is holding a lock on the required resource. This is a common issue in SAP systems where multiple users or processes are trying to access the same data simultaneously.
  Cause:
  
  Locking Mechanism: SAP uses a locking mechanism to ensure data integrity. When one user or process is working on a particular record, it locks that record to prevent others from making changes until the first user completes their transaction.
  Long-Running Transactions: If a transaction takes too long to complete, it can block other sessions from accessing the same data.
  Deadlocks: In some cases, two or more sessions may be waiting for each other to release locks, leading to a deadlock situation.
  Unfinished Transactions: If a user has left a transaction open or has not properly logged out, it can lead to locks remaining in place.
  
  Solution:
  
  Wait and Retry: Often, the simplest solution is to wait for the other session to complete its transaction. After a short period, try to execute the transaction again.
  Identify the Blocking Session:
  
  Use transaction SM12 (Display and Delete Locks) to view the locks currently held in the system. You can identify which user or session is holding the lock.
  If you have the necessary authorizations, you can delete the lock entries, but this should be done with caution as it may lead to data inconsistencies.
  
  
  Check for Long-Running Transactions: Use transaction SM66 (Global Work Process Overview) to monitor active processes and identify any long-running transactions that may be causing the block.
  Review System Logs: Check the system logs (transaction SM21) for any errors or warnings that might provide additional context about the blocking session.
  Communicate with Users: If you identify a specific user or process causing the block, communicate with them to understand the situation and coordinate a resolution.
  Optimize Processes: If this issue occurs frequently, consider reviewing and optimizing the processes that lead to long locks. This may involve improving transaction performance or changing how data is accessed.
  
  Related Information:
  
  Transaction Codes:
  
  SM12: To view and manage lock entries.
  SM66: To monitor active processes and sessions.
  SM21: To check system logs for errors.
  
  
  SAP Notes: Check SAP Notes for any known issues or patches related to locking mechanisms or specific transactions that may be causing the problem.
  Documentation: Review SAP documentation on locking mechanisms and best practices for transaction management to prevent future occurrences.
  
  If the problem persists or if you are unsure about taking any actions, it may be advisable to consult with your SAP Basis team or a qualified SAP consultant for further assistance.