ax 2009 Hierarchy Error

Hi All,

I am Working in ax 2009 workflows for Purchase Requisition. 

I am implementing Hierarchy based workflow, when i am doing this i am facing the following error:

Stopped (error): Job not found.  Verify that the employee is assigned to a job.

I assigned the Job. but it is returning the Above error.

Can any one help me.

Thanks in Advance.