Custom event not getting triggered for subtype

Hi Experts,

My requirement is to trigger a workflow when the status of Complaint is changed.I have done following things:-

a) Create a Z-BO extending Complaints(BUS2000120).

b) Add a custom event to it.

c) Relate the event with status in BSVW->Customer Settings.

Now the issue is -event is not triggered when the status of complaint is changed.What is missing here?

The status of object type and event is implemented.

Do i need to delegate also?

Please provide me some pointers.I am really stuck out here.

Thanks and Regards,

Rohit