| Purchase RequisitionsThe purchase requisition
procedure is designed for the nonpurchasing user who may not know the standard
procedures in purchasing. For example, engineers can order material or services
without understanding the entire purchasing process. Purchase requisitions are used to specify nonsystem planned requirements for
various types of items, including inventory items, cost items, and service items. Purchase requisitions
are created in the same way as all other buy and sell documents, such as
purchase orders and sales orders. However, there is one significant difference:
on a requisition, the item code and buy-from business partner codes can be
blank. Therefore, the requester can make a request for a new item or make a
request from a new buy-from business partner. The purchase requisition procedure includes the creation, approval and conversion of
purchase requisitions. In addition, you can copy, cancel, and delete
requisitions, and log requisition history. Before a purchase requisition can be converted to a purchase
order or a request-for-quotation, it must be approved by an approver or a list
of approvers. An approver is a valid employee or department authorized to
approve requisitions submitted by
requesters. Approvers can approve or reject requisitions. The purchase requisition status determines if you can submit,
approve, delete, modify, cancel, or copy a purchase requisition. You can use additional information fields to specify additional
information on purchase requisitions. These fields are used throughout the
process. For example, they are used in the purchase requisition, the purchase
order, the warehouse order, and the receipt process in Warehousing. You can insert items from a product catalog as new
requisition lines on purchase requisitions, or you can replace existing
requisition lines. In case of service subcontracting, requisitions can include Cost or Service items, or Purchased or Manufactured items with linked material supply
information. These requisitions can be generated from a work order activity in
case of depot repair, or from a service order activity in case of field
service. To identify costs, demand, and supply for a project, you can
peg project costs for purchase requisition lines.
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