When an Item Fulfillment has no journal entry in the GL Impact, one probable cause is that the Item Fulfillment is dated before the Inventory Adjustment. Below are the steps that can be taken to reflect the GL impact:
1. Open the Inventory Adjustment record > Edit > Date it before the Item Fulfillment > Save.
2. Open the Item Fulfillment record > Edit > uncheck and check the fulfill checkboxes on the item lines > Save.
3. View the GL Impact. It should have a journal entry now.
4. You may choose to edit back the Inventory Adjustment to its original date.