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Dynamics 365 Community / Forums / Microsoft Dynamics AX (Archived) / Workflow Error: Ax2012...
Microsoft Dynamics AX (Archived)

Workflow Error: Ax2012 : Failed to find execution event handler class for automated task

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Posted on by Pradeep Itnal 3,248

Hi guys 

I am developing a workflow on ax2012, when i submit my workflow, it works fine, and workflow is submitted to workflow engine and status is changed to submitted, later the workflow does not proceed further and i checked the workflow history it shows me below error: 

 Stopped (error): X++ Exception: Failed to find execution event handler class for automated task "AXWCustCarApprovalEventHandler" (it is my class name for approval event)

 at SysWorkflowHelper-createInstance

SysWorkflowWorkItem-invokeWorkItemEventHandler

SysWorkflowWorkItem-raiseWorkItemEvent

SysWorkflowWorkItem-createWorkItems

SysWorkflow-save

SysWorkflowQueue-resume

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I have the same question (0)
  • Community Member Profile Picture
    Community Member on at

    Hi Pradeep,

    Did you figure out what was causing this error? I'm having exactly the same problem with an approval workflow I have developed and I can't find an answer anywhere.

    Regards,

    David

  • mongro Profile Picture
    mongro 25 on at

    Hello,

    I had the same error.

    The reason was that creator automatically assigned my class to WorkItemCreatedEventHandler property on Workflow Approval, but I didn't have 'create' method in my class.

    First solution - clearing WorkItemCreatedEventHandler property.

    Second solution - class modification:

    1 adding WorkflowWorkItemsCreatedEventHandler to implements section in ClassDeclaration

    2 adding 'created' method to class

    public void created(WorkflowWorkItemsEventArgs _workflowWorkItemsEventArgs)

    {

       return;

    }

    Monika

  • Community Member Profile Picture
    Community Member on at

    i m getting this error when user rejects the workflow.

  • Suggested answer
    Community Member Profile Picture
    Community Member on at

    i got it resolved just by generating incremental CIL.

  • Suggested answer
    MuthuAX Profile Picture
    MuthuAX 5 on at

    I had same problem and resolved by above steps given by Monika

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