How To Fix /SCWM/L3142 - Error locking tRFC &1 by user &2

/SCWM/L3142 - Overview

• Message type: E = Error

• Message class: /SCWM/L3 -

• Message number: 142

• Message text: Error locking tRFC &1 by user &2

Self-Explanatory Message

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/SCWM/L3142 - Details

• The SAP error message /SCWM/L3142 Error locking tRFC &1 by user &2 typically occurs in the context of the SAP Extended Warehouse Management (EWM) system when there is an issue with the transactional Remote Function Call (tRFC) locking mechanism. This error indicates that a specific tRFC queue is locked by another user, preventing the current user from processing it.
  
  Cause:
  
  Concurrent Access: The tRFC queue is being accessed by another user or process, leading to a lock on that queue.
  Long-Running Transactions: If a transaction takes too long to complete, it may hold the lock longer than expected, causing other transactions to fail.
  System Configuration: There may be configuration issues in the tRFC settings or in the EWM system that lead to locking problems.
  User Session Issues: Sometimes, user sessions may not be properly terminated, leading to lingering locks.
  
  
  Solution:
  
  Identify the Lock: Use transaction code SM12 to check for locks held by user &2. You can