How To Fix WP136 - POS consignment: Error setting lock (&)

SAP Error Message - Details

• Message type: E = Error

• Message class: WP - Messages from POS interface

• Message number: 136

• Message text: POS consignment: Error setting lock (&)

Self-Explanatory Message

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• What is the cause and solution for SAP error message WP136 - POS consignment: Error setting lock (&) ?

  SAP Error Message:
  
  WP136 POS consignment: Error setting lock (&)
  
  Cause:
  This error typically occurs in the context of POS (Point of Sale) consignment processing in SAP Retail. The message indicates that the system failed to set a lock on a consignment document or related data object during processing.
  Possible reasons include:
  
  Lock contention: Another user or process already holds a lock on the same consignment document or related data, causing the current process to fail when trying to set a lock.
  Inconsistent or stale data: The consignment document might be in an inconsistent state or has been changed/deleted by another process.
  Technical issues: Problems with the enqueue server or lock table in SAP, such as lock table overflow or enqueue server errors.
  Custom code or enhancements: If there are custom developments or user exits involved in POS consignment processing, they might incorrectly handle locks.
  
  
  Solution:
  
  
  Check for Lock Contention:
  
  Use transaction SM12 to check for existing locks on the consignment document or related objects.
  Identify if another user or process holds the lock.
  If the lock is obsolete (e.g., from a crashed session), you may need to delete the lock manually after confirming it is safe.
  
  
  
  Review the Process Flow:
  
  Ensure that the consignment document is not being processed simultaneously by multiple processes.
  Coordinate batch jobs or user activities to avoid concurrent access.
  
  
  
  Check System Logs and Enqueue Server:
  
  Use transaction SM21 to check system logs for enqueue server errors.
  Restart the enqueue server if necessary (consult your Basis team).
  
  
  
  Debug or Analyze Custom Code:
  
  If custom enhancements or user exits are involved in POS consignment processing, review the code to ensure proper lock handling.
  Make sure locks are set and released correctly.
  
  
  
  SAP Notes and Support:
  
  Search for SAP Notes related to message WP136 or POS consignment lock errors.
  Apply any relevant patches or corrections.
  
  
  
  
  Related Information:
  
  Transaction SM12: Display and manage SAP locks.
  Transaction SM21: System log for error analysis.
  Enqueue Server: Responsible for lock management in SAP.
  POS Consignment Process: Involves consignment stock management at POS terminals.
  SAP Retail Module: POS consignment is part of SAP Retail (IS-Retail).
  
  
  Summary:
  
  
  
  Aspect
  Details
  
  
  
  
  Error
  WP136 POS consignment: Error setting lock (&)
  
  
  Cause
  Lock contention, stale data, enqueue server issues, or custom code problems
  
  
  Solution
  Check and clear locks in SM12, review concurrent processing, check enqueue server logs, debug custom code, apply SAP Notes
  
  
  Tools
  SM12, SM21, Enqueue server management
  
  
  Module
  SAP Retail (POS Consignment)
  
  
  
  
  If the problem persists after these steps, consider raising a support ticket with SAP, providing detailed logs and system information.