How To Fix GTCN_MESSAGE242 - Action failed, substitute list for processor &1 is locked by &2

SAP Error Message - Details

• Message type: E = Error

• Message class: GTCN_MESSAGE - GTCN: Message Class

• Message number: 242

• Message text: Action failed, substitute list for processor &1 is locked by &2

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message GTCN_MESSAGE242 - Action failed, substitute list for processor &1 is locked by &2 ?

  The SAP error message GTCN_MESSAGE242 indicates that an action has failed because the substitute list for a specific processor (identified by &1) is locked by another user or process (identified by &2). This typically occurs in scenarios where multiple users or processes are trying to access or modify the same data simultaneously, leading to a lock situation.
  Cause:
  
  Concurrent Access: Another user or process is currently using or modifying the substitute list for the specified processor, which prevents your action from proceeding.
  Long-running Transactions: A transaction that takes a long time to complete may hold the lock longer than expected.
  System Configuration: Certain configurations or settings in the SAP system may lead to locks being held longer than necessary.
  
  Solution:
  
  Wait and Retry: The simplest solution is to wait for the other user or process to complete their action and then try again.
  Identify the Lock: Use transaction code SM12 to check for locks in the system. You can look for the user or process that is holding the lock on the substitute list.
  Contact the User: If you identify the user holding the lock, you may want to contact them to see if they can release the lock or complete their transaction.
  Release the Lock: If necessary and if you have the appropriate permissions, you can manually release the lock in transaction SM12. However, this should be done with caution, as it may disrupt the other user's work.
  Check for Long-running Processes: If the lock is due to a long-running process, investigate the process to see if it can be optimized or if it needs to be terminated.
  System Configuration Review: If this issue occurs frequently, consider reviewing the system configuration and lock management settings to minimize lock contention.
  
  Related Information:
  
  Transaction Codes: 
  
  SM12: To view and manage locks.
  SM21: To check system logs for any related errors or warnings.
  ST22: To check for dumps that might provide additional context.
  
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  Documentation: Review SAP documentation related to lock management and concurrency control for best practices.
  
  If the problem persists after trying the above solutions, it may be beneficial to involve your SAP Basis team or support for further investigation.