Process Flow for Pick Parts Using Inventory-Managed (MM-IM) Storage Location (P3) 
In this process, the ERP system manages the stock of the production supply area (PSA) in an MM-IM storage location. An EWM-managed storage location stages the components. From the EWM perspective, the production supply delivery is an outbound delivery. It contains the PSA, enabling the warehouse specialist to know where he or she has to stage the products. After confirming the warehouse task, the system posts the stocks in EWM as goods issue. Posting the outbound delivery in the EWM system leads to a posting change in the ERP system from storage location to storage location (movement type 411).
For more information about the confirmation, see SAP Library under 
SAP ERP Central Component 
Logistics Logistics Execution (LE) Integration of Extended Warehouse Management Processes in Production and Process Order Production Order Confirmation 
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Process
You execute most of the process steps of the following process manually. To a large extent, you can also automate the process to match your requirements.
Create a manufacturing order in the ERP system (transaction CO01 oder COR1), and save it. Choose
Logistics Production Shop Floor Control Order Create. Release the manufacturing order.
Activate staging for the products by calling transaction CO02 or COR2.
You use the manufacturing order number to find and check the outbound delivery. To call transaction /SCWM/PRDO, choose
Extended Warehouse Management Delivery Processing Outbound Delivery Maintain Outbound Delivery Order. Create a warehouse task for the outbound delivery order. Choose
Extended Warehouse Management Work Scheduling Create Warehouse Task for Warehouse Request Stock Removal for Outbound Delivery Order. Confirm the warehouse task. This triggers goods issue, depending on your settings in Customizing und in the production supply area (PSA). Choose
Extended Warehouse Management Execution Confirm Warehouse Task.
The following is a graphical representation of the process:
