This is Workflow Known Error -Due date exceeded in Ax 2012 but solution still not found on searching on internet. X++ Exception: invalid tracking submission expected context Workflow and expected type Submission actual context Workflow and actual type Fault. at SysWorkflow-faultWorkflowInstance SysWorkflow-internalFault SysWorkflow-fault WorkflowTrackingTable-saveTracking SysWorkflowWorkItem-escalate X++ Exception: invalid tracking submission expected context Workflow and expected type Submission actual context WorkItem and actual type DueDateExceeded. at WorkflowTrackingTable-saveTracking SysWorkflowWorkItem-escalate Could any one give right comment and answer I tried, IISReset,Full compilation of CIL and application,Restart AOS Services and Server but problem not resolved. Workflow stop working after this error.