Below Is a Narrative of the "Order Goods and Services

Below is a narrative of the "Order goods and services" portion (bubble 2.0) of the purchasing process described in Chapter 12.
Narrative Description
The first process involves vendor selection (bubble 2.1). A buyer generally consults the vendor master data to identify potential suppliers that have been approved for use by the organization and then evaluates each prospective vendor for a particular purchase.
After the vendor has been selected, the buyer prepares a purchase order (PO). Process bubble 2.2 of depicts the process of preparing a PO. The "purchase order" data flowing out of process 2.2 is sent to the vendor. At the same time, the inventory master data is updated to reflect the goods on order. A record of the purchase is stored on the PO master data, and PO information is distributed to several
departments, including the requesting department, the inventory management process, accounts payable process, and receiving.
Required:
From the DFD (TB Figure 12.3) and the narrative description above, explode bubble 2.0 into a lower-level diagram showing the details of that process.