How To Fix CPWB812 - Task list requires a history

SAP Error Message - Details

• Message type: E = Error

• Message class: CPWB - General Workbench Messages

• Message number: 812

• Message text: Task list requires a history

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CPWB812 - Task list requires a history ?

  The SAP error message CPWB812 ("Task list requires a history") typically occurs in the context of production planning and control, particularly when working with task lists in the SAP system. This error indicates that the system requires a history of the task list to proceed with certain operations, such as planning or executing production orders.
  Cause:
  
  Missing Historical Data: The task list you are trying to use may not have the necessary historical data associated with it. This could be due to the task list being newly created or not having been executed previously.
  Configuration Issues: There may be configuration settings in the system that require historical data for certain operations.
  Data Integrity Issues: There could be issues with the data integrity in the database, leading to the absence of required historical records.
  
  Solution:
  
  Check Task List History: Verify if the task list has been executed previously. If it has not, you may need to create a production order or perform a test run to generate the necessary history.
  Review Configuration Settings: Check the configuration settings in the SAP system related to task lists and production orders. Ensure that the settings align with your business processes and do not require unnecessary historical data.
  Create Historical Data: If the task list is new, consider creating a dummy production order to generate the required history. This can sometimes resolve the issue.
  Consult Documentation: Review SAP documentation or help resources for specific guidance on handling task lists and historical data requirements.
  Contact SAP Support: If the issue persists, consider reaching out to SAP support or your internal SAP team for further assistance. They may be able to provide insights based on your specific system configuration and usage.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as C202 (Change Task List) or C203 (Display Task List) to manage task lists effectively.
  SAP Notes: Check for any SAP Notes related to this error message, as they may provide patches or updates that address the issue.
  User Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to address the CPWB812 error and ensure that your task lists are functioning as intended within the SAP system.