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

SAP Error Message - Details

• 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?

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 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 Group: Verify that the task list group specified in the error message exists and is correctly configured. You can do this by navigating to the relevant transaction codes (e.g., IL01 for task lists) and checking the details.
  
  
  Review Data Completeness: Ensure that all necessary data for the task list and order is complete. This includes checking for missing components, operations, or other required fields.
  
  
  Configuration Review: Review the configuration settings related to the task list group and the planning process. Ensure that all settings are correctly defined according to your organization's requirements.
  
  
  Check Dependencies: Investigate any dependencies or constraints that may be affecting the simulation. This may involve checking for linked orders, maintenance plans, or other related objects.
  
  
  Consult Documentation: Refer to SAP documentation or help resources for additional guidance on the specific task list group and its requirements.
  
  
  Testing: After making any changes, perform a test simulation to see if the error persists. If it does, further investigation may be needed.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as IL01 (Create Task List), IL02 (Change Task List), and IP01 (Create Maintenance Plan) to navigate and check configurations.
  SAP Notes: Check SAP Notes for any known issues or patches related to the IP891 error. SAP Notes can provide specific fixes or workarounds.
  User Forums and Communities: Engage with SAP user communities or forums where similar issues may have been discussed. Other users may have encountered the same error and can provide insights or solutions.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP support team or a technical consultant who can provide more in-depth analysis and assistance.