How To Fix U9004 - &1( &2): Invalid task list

SAP Error Message - Details

• Message type: E = Error

• Message class: U9 - Message Class for Output in Application Log

• Message number: 004

• Message text: &1( &2): Invalid task list

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 U9004 - &1( &2): Invalid task list ?

  The SAP error message U9004 typically indicates that there is an issue with a task list in the system. This error can occur in various contexts, such as during the execution of a maintenance order, production order, or when working with task lists in general.
  Cause:
  The error message U9004 usually arises due to one or more of the following reasons:
  
  
  Invalid Task List: The task list specified does not exist or is not valid in the system. This could be due to a typo in the task list number or the task list being deleted or not created yet.
  
  
  Task List Status: The task list may be in a status that does not allow it to be used (e.g., it might be locked or marked for deletion).
  
  
  Incorrect Configuration: There may be configuration issues in the system that prevent the task list from being recognized or processed correctly.
  
  
  Authorization Issues: The user may not have the necessary authorizations to access or execute the task list.
  
  
  Solution:
  To resolve the U9004 error, you can take the following steps:
  
  
  Verify Task List: Check the task list number you are using. Ensure that it exists in the system and is correctly entered. You can do this by navigating to the relevant transaction (e.g., CA01 for creating task lists) and searching for the task list.
  
  
  Check Task List Status: Ensure that the task list is active and not locked or marked for deletion. You can check the status in the task list details.
  
  
  Review Configuration: If you suspect a configuration issue, review the settings related to task lists in the relevant customizing transactions (e.g., SPRO).
  
  
  Authorization Check: Ensure that the user executing the task has the necessary authorizations to access and use the task list. You may need to consult with your SAP security team to verify this.
  
  
  Consult Documentation: If the issue persists, refer to SAP documentation or support notes related to the specific error message for additional troubleshooting steps.
  
  
  Contact SAP Support: If you are unable to resolve the issue, consider reaching out to SAP support for further assistance, providing them with the error message details and the context in which it occurred.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CA01 (Create Task List), CA02 (Change Task List), and CA03 (Display Task List).
  SAP Notes: Search for SAP Notes related to error U9004 in the SAP Support Portal for any known issues or patches.
  User Forums: Check SAP community forums or other user groups for discussions related to this error, as other users may have encountered and resolved similar issues.
  
  By following these steps, you should be able to identify and resolve the cause of the U9004 error in your SAP system.