Manufacturer Part Number (MPN)


If you wish to influence the precise source or quality of materials, you can tell the vendor from whom you want to procure a material which manufacturer the material is to be supplied by and the part number used by that manufacturer.

You can also tell your vendor exactly which of a manufacturer’s plants is to supply the material you wish to procure.

The manufacturer’s part number (MPN) and description, as well as the specific manufacturing plant (if applicable), are included in the data sent to the vendor with the purchase order.

Your vendor gets the steel bolts he supplies to you from the manufacturers Zenith Co. and Miller Corp.

However, you are not satisfied with the quality of the Zenith product. You wish to have the steel bolts that are manufactured by Miller Corp. You advise your vendor of this in the purchase order by specifying the manufacturer and the MPN.

For procurement purposes, you can use the material or part number used by the manufacturer (MPN) alongside your firm’s own material number.

If you wish to check whether a certain Manufacturer Partmay be ordered and used within your enterprise, you should make use of the approved manufacturer parts list (AMPL). The latter indicates exactly which of a manufacturer’s plants the materials included on the list are to be procured from.

For more information, refer to the section Approved Manufacturer Parts List .


If you wish to work with manufacturer part numbers, you must satisfy the following prerequisites:

  • Make the necessary Customizing settings

  • Create material master records

  • Define manufacturer part profile

  • Create master records for manufacturers and manufacturer plants

Make the necessary Customizing settings

If you wish to work with MPNs, you must set the Manufacturer part number indicator in Customizing for Logistics (General), ( Start of the navigation path Material Master Next navigation step Basic Settings Next navigation step Make Global Settings) End of the navigation path

Create material master records

If you work with MPNs, the number of manufacturers of a manufactured part corresponding to one of your firm’s own materials determines the number of material master records you have to create:

  • If there is just one MPN corresponding to one of your firm’s own materials, you can enter it and the manufacturer directly in the master record for your own material. In this case, you need not create an MPN Material.

  • If there are several MPN materials corresponding to one of your firm’s own materials, you must create MPN material master records with the material type HERS. In the Purchasing view, enter the manufacturer part number, the manufacturer (this can be either a vendor master record or a manufacturer master record), and your firm’s own, inventory-managed material.

    The MPN material master records are assigned to your firm’s own material. Stocks are managed with respect to the firm’s own material.

Define manufacturer part profile

Manufacturer part profiles (MPN profiles) allow you to specify for each of your firm’s own materials the conditions under which the MPN material may be used in the procurement process.

Using the MPN profile, you can determine the following, for example:

  • Whether the MPN material has to be entered in the purchase order.

  • Whether purchasing info records are created for the firm’s own material or for the MPN materials.

  • Whether the PO text for the firm’s own material or the one for the MPN material is used.

  • Whether the MPN material may be changed during the procurement process.

  • Whether the system is to check the approved manufacturer parts list when an MPN material is entered.

You define the MPN profiles in Customizing for Purchasing under Material Master.

You enter the MPN profile in the master record for your firm’s own material (Purchasing view).

Create master records for manufacturers and manufacturer plants

If, during the process of procuring materials, you wish to have the option of choosing between several manufacturers of a material, or between several of a certain manufacturer’s plants, you must create separate master records for such manufacturers and for the relevant plants belonging to the latter.

The number of master records you will need to create for manufacturers, manufacturer plants, and vendors, depends on

  • Whether the vendor is also the manufacturer

  • Which of the plants belonging to a certain manufacturer you wish to procure materials from

    Vendor is not the manufacturer

    If the manufacturer is not a vendor (end supplier), you can store the manufacturer data in a manufacturer master record with a minimum of data entry effort. You then assign the account group MNFR to this manufacturer master record. If you wish to store an external ID for the manufacturer, enter it in the control data ( External manufacturer field). This identification will appear in the purchase order.

    Vendor is also the manufacturer

    If the vendor is simultaneously the manufacturer, you can work with vendor master records. You must then ensure that a partner schema that takes the partner role HS into consideration is assigned to the account group of the vendor master record. (In Customizing for Purchasing under Start of the navigation path Partner Determination Next navigation step Partner Settings in Vendor Master Record Next navigation step Assign Partner Schemas to Account Groups End of the navigation path ).The manufacturer plants must then have the partner role HS in the vendor master record.

    You wish to procure materials from certain specific manufacturer plants

    If the manufacturer has several Manufacturer Plants, you can create a separate manufacturer master record with the account group MNFR for each of them. The manufacturer plants must have the partner role HS (manufacturer plant) in the manufacturer (vendor) master record.

The following graphic shows which partner roles you have to maintain in the master records for the vendor, manufacturer, and manufacturer plant:


See Searching for MPN Materials

See Manufacturer Part Number: Features

For further information on the use of manufacturer part numbers, refer to the documentation Quality Management in Procurement under Manufacturer Part Number Management in QM .