A purchase can have only one supplier, but may include several deliveries to different delivery locations and times, which can also have a different processing status.
Go to the Home tab and click on Purchasing > New and select a company if applicable.
An input window for a new purchase will open. The supplier is already pre-assigned and can no longer be changed.
Select a Name for the purchase order from the expandable picklist or add a new one.
Link the purchase to an event by opening the "Events" window and clicking on Add to open the search.
Select an existing event from the search results or create a New event in the toolbar of the list. If the event contains a segment with purchase items, it will appear on the given date in the Purchasing overview.
Save your input by clicking on the icon in the top left-hand corner of the input window.