Show TOC

 Purchase Requisitions (MM-PUR-REQ)


You use this component if you wish to give notification of requirements of materials and/or external services and keep track of such requirements.

Requisitions can be created either directly or indirectly.

“Directly” means that someone from the requesting department enters a purchase requisition manually. The person creating the requisition determines what and how much to order, and the delivery date.

“Indirectly” means that the purchase requisition is initiated via another SAP component.

The creation indicator in the requisition shows whether the requisition was created directly or indirectly. It is displayed in analyses of requisitions and in the statistical data of a requisition item (see Analyses of Purchase Requisitions

Purchase requisitions can be subject to a release (clearance, or approval) procedure. For more information on this topic, see Release Procedure .


Requisitions can be created indirectly in the following ways:

  • Via materials planning and control

    The component Consumption-Based Planning proposes materials that need to be ordered on the basis of past consumption or usage figures and existing stock levels. The order quantity and the delivery date are determined automatically.

    For more information, see the Consumption-Based Planning documentation (MM-CBT).

    Materials planning and control can stipulate that a purchase requisition is to be resubmitted to the purchasing department if it has not been processed after a predefined period of time.

  • Via networks (from the component PS Project System )

    Requisitions are generated automatically from networks if:

    • A material component with non-stock material or an external service component has been assigned to an operation and

    • The indicator allowing automatic generation of requisitions immediately the network is saved has been set in the network.

      In this way, requisitions can be forwarded to Purchasing early in the planning phase.

      If the indicator has not been set, the system passes the data on to materials planning and control when the network is released. The latter component then creates the requisition.

      For more information, see the PS Project System documentation (section Material ).

  • Via maintenance orders (from the PM Plant Maintenance and Service Management component)

    Requisitions are generated automatically from maintenance orders if:

    • A material component with a non-stock material has been assigned to an operation, or

    • An operation with the control key for external services has been created.

      For more information, see Planning in the Maintenance Order in the PM Maintenance Orders documentation.

  • Via production orders (from the PP Production Planning and Control component).

    Requisitions are generated automatically from production orders if:

    • They contain an external processing operation (for example, subcontracting work) A precondition is that the control key for the operation allows or prescribes external processing.

    • They contain non-stock components

      For more information, see External Procurement/External Processing in the PP Production Orders documentation.

      Note Note

      Texts from externally created requisitions (PS, PM) are copied to the item text of the purchase requisition in Purchasing.

      End of the note.


As of Release 4.6C, the purchase requisition in a single-screen transaction (transactions ME51N, ME52N, and ME53N) exist alongside the "traditional" purchase requisition, which is described in the following sections of SAP Library.

For information about the user interface and functions of the single-screen transaction, see the help area within the application, which you can show or hide.

The procedure and menu paths in SAP Library refer to the traditional purchase requisition, unless otherwise stated.