How To Fix IP891 - Order simulation for task list group &1 is not correct

IP891 - Overview

• Message type: E = Error

• Message class: IP - Messages for preventive maintenance

• Message number: 891

• Message text: Order simulation for task list group &1 is not correct

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?

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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 IP891 - Order simulation for task list group &1 is not correct ?

  The SAP error message IP891 indicates that there is an issue with the order simulation for a task list group. This error typically arises in the context of maintenance planning and scheduling within the SAP system, particularly when using the Integrated Planning (IP) functionality.
  
  Cause:
  The error message IP891 can be caused by several factors, including:
  
  Incorrect Task List Group: The task list group specified may not be correctly defined or may not exist in the system.
  Missing or Incomplete Data: Required data for the task list or order may be missing or incomplete, leading to an inability to simulate the order correctly.
  
  Configuration Issues: There may be configuration issues in the planning settings or in the task list group itself.
  Dependencies and Constraints: There may be dependencies or constraints that are not being met, which can prevent the simulation from being executed correctly.
  
  
  Solution:
  To resolve the IP891 error, you can take the following steps:
  
  
  Check Task List