How To Fix WD492 - Task type cannot be used for a decision task

SAP Error Message - Details

• Message type: E = Error

• Message class: WD - Workflow definition

• Message number: 492

• Message text: Task type cannot be used for a decision 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 WD492 - Task type cannot be used for a decision task ?

  SAP Error Message:
  
  WD492 - Task type cannot be used for a decision task
  
  Cause:
  This error occurs when you try to assign or use a task type that is not valid for a decision task in a Web Dynpro ABAP workflow or Web Dynpro component. In SAP Workflow, decision tasks are special tasks designed to handle decision points (e.g., user decisions, branching logic). They require specific task types that support decision logic.
  If you assign a standard dialog task or any other non-decision task type to a decision task node, the system raises this error.
  
  Explanation:
  
  Decision Task: A task that allows the workflow to branch based on user input or system conditions.
  Task Type: Defines the nature of the task (e.g., dialog task, method task, container task, decision task).
  Only certain task types are allowed for decision tasks, typically those designed to handle decision logic (e.g., decision tasks or user decision tasks).
  
  
  Solution:
  
  
  Check the Task Type:
  
  Go to the Workflow Builder (transaction SWDD).
  Locate the task assigned to the decision node.
  Verify the task type in the task definition (transaction PFTC).
  
  
  
  Use the Correct Task Type:
  
  For decision tasks, use task types that are explicitly designed for decision handling, such as:
  
  Decision Task (task type 'D')
  User Decision Task
  
  
  Do not use dialog tasks or other task types that are not meant for decision nodes.
  
  
  
  Adjust the Workflow Model:
  
  If you mistakenly assigned a dialog task to a decision node, replace it with a decision task.
  Alternatively, if you need a dialog task, change the node type from decision to activity.
  
  
  
  Check Task Definition:
  
  In transaction PFTC, open the task and check the "Task Type" field.
  If necessary, create a new decision task or modify the existing one to be a decision task.
  
  
  
  
  Additional Information:
  
  
  Transaction Codes:
  
  SWDD - Workflow Builder
  PFTC - Task Maintenance
  SWI1 - Workflow Log (to analyze workflow errors)
  
  
  
  SAP Notes / Documentation:
  
  Refer to SAP Help Portal for Workflow task types and their usage.
  Check SAP Notes related to workflow errors if the problem persists.
  
  
  
  Common Scenario:
  
  When modeling workflows, decision nodes require decision tasks to capture user input for branching.
  Assigning a dialog task (which expects user interaction but not decision branching) causes this error.
  
  
  
  
  Summary:
  
  
  
  Aspect
  Details
  
  
  
  
  Error
  WD492 - Task type cannot be used for a decision task
  
  
  Cause
  Incorrect task type assigned to a decision task node
  
  
  Solution
  Use a valid decision task type for decision nodes; adjust task or node accordingly
  
  
  Tools
  SWDD, PFTC, SWI1
  
  
  
  
  If you provide the workflow or task details, I can help you identify the exact task type and suggest the correct one.