How To Fix WD398 - Task '&' is used in multistep task '&'

SAP Error Message - Details

• Message type: E = Error

• Message class: WD - Workflow definition

• Message number: 398

• Message text: Task '&' is used in multistep task '&'

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 WD398 - Task '&' is used in multistep task '&' ?

  Certainly! Here's a detailed explanation for the SAP error message:
  
  SAP Error Message:
  WD398 Task '&' is used in multistep task '&'
  
  Cause:
  This error occurs in Web Dynpro when a task is assigned incorrectly within a multistep task configuration. Specifically, the message indicates that a task (identified by the first placeholder '&') is being used inside a multistep task (identified by the second placeholder '&'), but this usage is not allowed or is inconsistent.
  In Web Dynpro, a multistep task is a task that contains multiple steps (subtasks). Each step is itself a task. The error typically arises when:
  
  A task that is already part of a multistep task is being reused or assigned incorrectly.
  There is a circular reference or duplication of tasks within the multistep task.
  The task structure violates the rules of task composition in the Web Dynpro component.
  
  
  Explanation:
  
  Task '&': The specific task name or ID that is causing the problem.
  Multistep task '&': The multistep task in which the above task is being used.
  
  The system is telling you that the task is being used inside a multistep task in a way that is not allowed.
  
  Solution:
  
  
  Check Task Assignments:
  
  Go to the Web Dynpro component where the multistep task is defined.
  Review the task hierarchy and ensure that each task is assigned correctly.
  Make sure that the task mentioned is not assigned multiple times or in a way that causes circular references.
  
  
  
  Avoid Reusing Tasks Improperly:
  
  If the task is already part of another multistep task, do not reuse it inside another multistep task.
  Create separate tasks if needed instead of reusing the same task in multiple multistep tasks.
  
  
  
  Correct Task Structure:
  
  Ensure that the multistep task contains only valid subtasks.
  Remove any duplicate or conflicting task assignments.
  
  
  
  Check for Circular References:
  
  Make sure that the task hierarchy does not create loops (e.g., task A contains task B, and task B contains task A).
  
  
  
  Transport and Activation:
  
  After correcting the task assignments, activate the Web Dynpro component and transport the changes if necessary.
  
  
  
  
  Additional Information:
  
  This error is related to the design-time configuration of Web Dynpro applications in SAP.
  It is important to maintain a clear and consistent task hierarchy to avoid such errors.
  Use the Web Dynpro Explorer or the Web Dynpro component editor in the SAP GUI or Eclipse-based tools to manage tasks.
  Refer to SAP documentation on Web Dynpro Task Management for best practices.
  
  
  Summary:
  
  
  
  Aspect
  Details
  
  
  
  
  Error
  WD398 Task '&' is used in multistep task '&'
  
  
  Cause
  Incorrect assignment or reuse of a task inside a multistep task causing conflict
  
  
  Solution
  Review and correct task assignments, avoid duplicate or circular references
  
  
  Tools
  Web Dynpro Explorer, SAP GUI, Eclipse Web Dynpro tools
  
  
  Related Notes
  Check SAP OSS notes or SAP Help Portal for updates on Web Dynpro task management errors
  
  
  
  
  If you provide the exact task names or the context of your Web Dynpro application, I can help you with more specific guidance.