SAP CRM Workflow , Associate Business Object column is Empty in Worklist WorkCenter

Hi Frds,

I am new to workflow, I have created workflow, it working fine, but Order link is not coming in the Associated BUsiness Obejct colomn in Worklist Workcenter. Through Exsisting workflow we are getting Associated Business Object link but not from my workflow.

Please Help me out of it. below is the screen shot.

Thanks

Imran