The "Procurement" project phase covers procurement of material components and their delivery to the construction site.

This process deals with the following procurement options:

• The mechanical and electrical components are kept in stock. They are reserved when the appropriate procurement activities are released. They are then managed as plant stock.
• Cabin door E-1317 is managed as project stock. E-1317 was created as a non-stock material item and is procured externally when required. The door dimensions are calculated automatically as part of characteristic valuation, and made available to purchasing in the form of a bill of material (BOM). The requirement (reservation) is not created until the cabin is released for procurement.
• Owing to the long delivery time, cable E-1700 has already been ordered. Being a material that requires advance ordering, E-1700 is managed as project stock. Purchase order and reservation are matched and allocated using the WBS element that gives rise to the requirement.