Parent_item_type and parent_item_key are not being populated in the wf_items table for the child pro

 Hi, I have a main process which calls a child process. The main process calls the child process at regular interval. Teh child process sends fyi notifications. When the child process is run, the Parent_item_type and parent_item_key not being populated in the wf_items table. Also no notifications are being generated and sent. There are no notifications in the wf_notifications table. In the status monitor the Items are having status of 'Active' instead of 'Complete'. Can someone please suggest why Parent_item_type and parent_item_key are not being populated in the wf_items table for the child process.