How To Fix WXP756 - Error when reading table TWISPC_PLSCHT for &1/&2

SAP Error Message - Details

• Message type: E = Error

• Message class: WXP - Retail Planning

• Message number: 756

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

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message WXP756 - Error when reading table TWISPC_PLSCHT for &1/&2 ?

  Certainly! Here's a detailed explanation for the SAP error message:
  
  SAP Error Message:
  WXP756 - Error when reading table TWISPC_PLSCHT for &1/&2
  
  1. Cause:
  The error message WXP756 occurs when the SAP system tries to read the table TWISPC_PLSCHT but fails for the given key values (represented by placeholders &1 and &2). This table is related to the Work Process Scheduling or Process Scheduling in SAP, particularly in the context of the SAP Web Dispatcher or Process Scheduling Framework.
  Common causes include:
  
  The entries for the specified keys (&1 and &2) do not exist in the table TWISPC_PLSCHT.
  The table TWISPC_PLSCHT is inconsistent or corrupted.
  Authorization issues preventing the read operation.
  The system is in an inconsistent state due to incomplete or failed process scheduling configuration or runtime errors.
  Transport or upgrade issues where the table content is missing or incomplete.
  
  
  2. Solution:
  To resolve the error:
  
  
  Check the keys &1 and &2:
  
  Identify what values are being passed as &1 and &2. These usually represent specific identifiers like process IDs, scheduling IDs, or similar.
  
  
  Verify table entries:
  
  Use transaction SE16N or SE11 to check if the entries for the given keys exist in TWISPC_PLSCHT.
  
  
  Recreate missing entries:
  
  If entries are missing, try to recreate or reinitialize the scheduling configuration that populates this table.
  
  
  Check system logs:
  
  Look into system logs (SM21), work process logs, or developer traces (ST11) for related errors that might indicate why the table read failed.
  
  
  Check authorizations:
  
  Ensure the user or process trying to read the table has the necessary authorizations.
  
  
  Run consistency checks:
  
  Run any available consistency or repair reports related to process scheduling or the Web Dispatcher.
  
  
  Apply SAP Notes:
  
  Search for SAP Notes related to WXP756 or TWISPC_PLSCHT. Sometimes SAP releases patches or corrections for known issues.
  
  
  Restart affected services:
  
  If the error is transient, restarting the SAP instance or the Web Dispatcher might help.
  
  
  
  3. Related Information:
  
  
  Table TWISPC_PLSCHT:
  
  This table is part of the internal scheduling framework in SAP, often related to the Web Dispatcher or process scheduling components.
  
  
  Transaction Codes:  
  
  SE16N / SE11: To view table contents and structure.  
  SM21: System log.  
  ST11: Developer traces.  
  SM37: Job monitoring (if related to scheduled jobs).
  
  
  
  SAP Notes and KBAs:
  
  Search the SAP Support Portal for notes referencing WXP756 or TWISPC_PLSCHT for specific patches or troubleshooting guides.
  
  
  Related Components:  
  
  SAP Web Dispatcher  
  Process Scheduling Framework  
  Work Process Management
  
  
  
  
  If you provide the exact values of &1 and &2 or the context in which this error occurs (e.g., during job scheduling, Web Dispatcher startup, etc.), I can help you with more targeted advice.