1. Click into the Order List under the Sales tab
2. Search an order
3. On the left side menu create Pquote
4. You can Manually set the Qty per part or you can click the set quantity need for all parts button
5. You can add this order an existing Pquote or create a new one
6. Select your vendor in the drop-down menu
7. That's how you create a PO from a sales order