How To Fix VO718 - Unexpected return code ENQUEUE_E_TMC2S: &

SAP Error Message - Details

• Message type: E = Error

• Message class: VO - W&S: Rough workload forecast + picking wave

• Message number: 718

• Message text: Unexpected return code ENQUEUE_E_TMC2S: &

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message VO718 - Unexpected return code ENQUEUE_E_TMC2S: & ?

  Certainly! Here's a detailed explanation for the SAP error message:
  
  SAP Error Message:
  VO718 Unexpected return code ENQUEUE_E_TMC2S: &
  
  1. Cause
  
  The error VO718 with the return code ENQUEUE_E_TMC2S typically occurs during lock handling in SAP, specifically related to the enqueue (lock) server.
  The enqueue server manages logical locks on SAP objects to ensure data consistency.
  The return code ENQUEUE_E_TMC2S indicates a problem with the enqueue service, such as:
  
  The enqueue server is not running or is unreachable.
  Communication issues between the application server and the enqueue server.
  Lock table overflow or lock table corruption.
  Network or system resource problems affecting enqueue service.
  In some cases, it can be caused by a timeout or deadlock situation.
  
  
  
  
  2. Solution
  To resolve the error, consider the following steps:
  a) Check Enqueue Server Status
  
  Use transaction SM12 to check for existing locks.
  Use transaction SM21 (system log) and ST22 (dump analysis) to check for related errors.
  Verify if the enqueue server is running properly:
  
  On the OS level, check the enqueue service process.
  Restart the enqueue server if necessary (consult your BASIS team).
  
  
  
  b) Check Network and Communication
  
  Ensure there are no network issues between the application server and the enqueue server.
  Check the enqueue server parameters in the instance profile (e.g., rdisp/enq/server).
  
  c) Analyze Lock Table
  
  Check if the lock table is full or corrupted.
  Increase the lock table size if necessary by adjusting the profile parameter enque/table_size.
  Clear stale or orphaned locks using SM12.
  
  d) Review System Resources
  
  Check for system resource constraints (CPU, memory) that might affect enqueue service.
  Ensure the system is not overloaded.
  
  e) Apply SAP Notes
  
  Search for relevant SAP Notes related to ENQUEUE_E_TMC2S or VO718.
  SAP Notes may provide patches or specific instructions for known issues.
  
  
  3. Related Information
  
  Transaction SM12: Display and manage lock entries.
  Transaction SM21: System log for error messages.
  Transaction ST22: Dump analysis for runtime errors.
  Profile Parameters:
  
  enque/table_size — size of the enqueue lock table.
  rdisp/enq/server — number of enqueue server processes.
  
  
  SAP Notes: Use SAP ONE Support Launchpad to search for notes related to enqueue errors.
  BASIS Team: Often requires BASIS team involvement for server restarts and parameter changes.
  
  
  Summary
  
  
  
  Aspect
  Details
  
  
  
  
  Error
  VO718 Unexpected return code ENQUEUE_E_TMC2S
  
  
  Cause
  Enqueue server issues: not running, communication failure, lock table problems
  
  
  Solution
  Check enqueue server status, restart if needed, verify network, increase lock table size
  
  
  Tools
  SM12, SM21, ST22, OS commands, SAP Notes
  
  
  Related Info
  Enqueue server parameters, system resources, SAP Notes
  
  
  
  
  If you provide more context (e.g., when the error occurs, system logs), I can help with more specific guidance.