Manufacturer Part Numbers (MPNs) in SAP MM

[Leelamohan]

In SAP Materials Management (MM), MPNs play a vital role in linking vendor-specific materials to a company's internal materials, streamlining procurement processes, and enhancing traceability.

Understanding how to effectively manage MPNs within SAP MM can significantly improve your organization's procurement accuracy and supplier relationships. In this blog, we'll explore the importance of MPNs, how they are integrated into SAP MM, and best practices for maintaining and utilizing MPNs to optimize your supply chain operations. Whether you're new to SAP MM or looking to refine your existing processes, this guide will provide valuable insights to help you leverage MPNs for maximum efficiency.

Step 1: Set Up Manufacturer Part Nunber Flag

Path: SPRO -> Logistics General -> Material Master -> Basic Settings -> Make Global Settings Set up the MPN Flag

Step 2: Create Manufacturer Part Profile

Path: SPRO –> Materials Management -> Purchasing -> Material Master -> Define Manufacturer Part Profile.

Approved Manufacturer Part List Management (AMPL), AMPL offers an extra list that allows you to keep track of your parts using internal materials and manage parts with specific validity dates. (AMPL can be activated/deactivated based on the business requirements)

Step 3: Create Vendor & Material Master data

In this blog, the business scenario detailed below is thoroughly explained.

Create Material Master using MM01 Transaction

Company’s own material (In this case Material created as a Raw Material)

While Creating Material, Maintain Manufacturing Part Profile in Purchasing View

Create Material with HERS material type

When a material is created in the system with the HERS material type, it links the vendor or manufacturer's material to the company's own material. For example, RM-TST-01 from vendor ABC is linked to RM-MPN-TST. The RM-MPN-TST-ABC can be any number, and the manufacturer part number is a free text field, allowing any material number to be entered. These Part numbers will later be printed on Purchase Order.

Similarly, create one more material with HERS material type and link another MPN and Manufacturer.

Step 4: Manage the MPN materials for the internal material RM-MPN-TST.

Here, maintain the materials RM-MPN-TST-ABC and RM-MPN-TST-XYZ. These materials have the HERS material type and are linked to the MPN material in the master data, as previously explained.

Navigate to transaction MP01 and Maintain the AMPL List for company own material RM-MPN-TST.

Step 5: Create Purchase Order for Company Own Material

Manufacturer Part Profile must appear in the Material Data for the PO

Click on Print Preview, Part Numbers are printed in the Purchase Order Form.

If any of the Manufacturer validity expired, that particular Part Number will not be printed in the Purchase Order.

Click on Print Preview, Part Numbers are printed in the Purchase Order Form.

If any of the Manufacturer validity expired, that particular Part Number will not be printed in the Purchase Order.

Note:

There is an additional field on the PO screen in ME21N where the MPN can be entered. This applies when there is a one-to-one relationship between the MPN material and the company's own material. This MPN material can be automated by maintaining an info record for the vendor/material combination. In the info record, you can maintain the vendor material number, which can then be copied to the PO screen.

Maintain Supplier Part Number in Purchase Info Record

While creating PO with same vendor and Material combination supplier Part number will be copied automatically from Info Record.