How To Fix WXP720 - Error when reading table TWISPC_PLSCH for &1/&2

SAP Error Message - Details

• Message type: E = Error

• Message class: WXP - Retail Planning

• Message number: 720

• Message text: Error when reading table TWISPC_PLSCH for &1/&2

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message WXP720 - Error when reading table TWISPC_PLSCH for &1/&2 ?

  Certainly! Here's a detailed explanation regarding the SAP error message:
  
  SAP Error Message:
  WXP720 Error when reading table TWISPC_PLSCH for &1/&2
  
  1. Cause:
  The error message WXP720 typically occurs when the SAP system tries to read the table TWISPC_PLSCH but fails for the specified keys (represented by placeholders &1 and &2). This table is related to the Work Process Scheduling in SAP, particularly in the context of the SAP Web Dispatcher or SAP Work Process Management.
  Possible causes include:
  
  The entries for the specified keys (&1 and &2) do not exist in the table TWISPC_PLSCH.
  The table TWISPC_PLSCH is inconsistent or corrupted.
  There is a mismatch or missing configuration related to work process scheduling.
  The system is trying to access scheduling information for a work process or task that has not been properly initialized or has been deleted.
  Transport or upgrade issues where the table content or structure is not aligned with the current system version.
  
  
  2. Solution:
  To resolve the WXP720 error, consider the following steps:
  
  
  Check Table Entries:
  
  Use transaction SE16N or SE11 to view the contents of TWISPC_PLSCH.
  Verify if the entries for the keys (&1 and &2) exist.
  If missing, investigate why these entries are not present.
  
  
  
  Reinitialize Work Process Scheduling:
  
  Sometimes, restarting the SAP instance or work processes can help reinitialize scheduling tables.
  Use transaction SM51 to check work process status.
  Restart the affected application server if necessary.
  
  
  
  Check for OSS Notes:
  
  Search SAP Support Portal for OSS Notes related to WXP720 or TWISPC_PLSCH.
  There might be patches or corrections available for your SAP version.
  
  
  
  Consistency Check:
  
  Run consistency checks on the table or related components.
  Use transaction SICK or other relevant tools to check system consistency.
  
  
  
  Transport/Upgrade Issues:
  
  If the error appeared after a system upgrade or transport, verify that all transports were imported correctly.
  Check for missing or inconsistent objects related to work process scheduling.
  
  
  
  SAP Basis Team Involvement:
  
  If the issue persists, involve your SAP Basis team to analyze system logs (transaction SM21) and trace files.
  They can also check for kernel or system-level issues affecting work process scheduling.
  
  
  
  
  3. Related Information:
  
  
  Table TWISPC_PLSCH:
  
  This table stores scheduling information for work processes.
  It is used internally by the SAP dispatcher and work process management.
  
  
  
  Transactions to Check:
  
  SE16N / SE11: View table contents.
  SM51: Check application servers and work processes.
  SM21: System log for related errors.
  ST22: Check for dumps related to this error.
  SICK: System consistency check.
  
  
  
  SAP Notes and Documentation:
  
  Search for SAP Notes with keywords: WXP720, TWISPC_PLSCH, work process scheduling error.
  Example SAP Note numbers might be available depending on your SAP version.
  
  
  
  System Environment:
  
  This error is more common in systems with heavy workload or after system changes.
  Ensure that the system is properly patched and updated.
  
  
  
  
  Summary:
  
  
  
  Aspect
  Details
  
  
  
  
  Cause
  Missing or inconsistent entries in TWISPC_PLSCH table for given keys; scheduling issues.
  
  
  Solution
  Verify table entries, restart work processes, check OSS notes, run consistency checks.
  
  
  Related
  Table TWISPC_PLSCH, transactions SE16N, SM51, SM21, ST22; SAP Notes on WXP720 errors.
  
  
  
  
  If you provide the exact values for &1 and &2 or the context in which the error occurs, I can help you further narrow down the issue.