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MM processes

Dear Gurus,

What is the Complete Documentation of MM processes, how to configure what is the steps pls help any documents related to this pls share with me to "

Thanking you


Reddy KS

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  • author's profile photo Former Member
    Former Member
    Posted on Jul 06, 2007 at 09:30 AM

    Dear Reddy,

    I m sending u Configuration doc for MM

    Kindly check ur yahoo mail account.


    sanjay L

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  • author's profile photo Former Member
    Former Member
    Posted on Jul 05, 2007 at 02:01 PM

    Dear Reddy KS,

    Best Practices Guide:

    Visit the follwing thread:

    New to Materials Management / Warehouse Management?

    MM Configuration:

    Maintain Plant

    Plant 0001 is the SAP default.

    OX14 - Define Valuation Area (Tick one only- Once your system go live, no more changes)

    Most company take the SAP recommended choice - Value Material Stock at Plant level

    Value Material Stock at Plant or Company Level

    If you valuate material stocks at plant level, the plant is the valuation area.

    If you valuate material stocks at company code level, the company code is the valuation area.

    The decision you make applies to the whole client.

    OX10 - Create / Change / View Plants

    OVXB - Create / Change / View Division

    OX18 - Assign Plant to company code

    e.g. 0001 - 0001 - All Plants

    Px1 - Plant Px1

    Px2 - Plant Px2

    OX19 - Assignment of company code to the Controlling Area

    OB38 - Assign company code to Credit Control Area

    OMJ7 - Assign business area to Plant/Valuation area and division

    e.g. Plant Px1 - Business Area Bx1


    Assign Valuation area to the Business Area

    .e.g. Valuation area Vx1 - Business Area Bx1

    Business Area Bx2

    OMS0 - Assign Factory Calendar to the Plant and Business Area

    The plant plays an important role in the following areas:

    Material Valuation - If the valuation level is the plant, the material stocks are valuated at plant level. Each plant can have its own material prices and account determination.

    Inventory Management - The material stocks are managed within a plant.

    MRP - Material requirements are planned for each plant. Each plant has its own MRP data. Analyses for materials planning can be made across plants.

    Production - Each plant having they own production/planning.

    Costing - In costing, valuation prices are defined only within a plant.

    Plant Maintenance - If a plant performs plant maintenance planning tasks, it is defined as a maintenance planning plant. A maintenance planning plant can also carry out planning tasks for other plants (maintenance plants).

    If you want to use the application PP (production planning) or product costing and job-order costing, you must set valuation at plant level.

    The valuation level that you choose affects

    the maintenance of material master records

    the G/L accounts in which material stocks are managed

    the G/L accounts to which transactions are posted in Materials Management

    Effect on the maintenance of material master records:

    Depending on the valuation level chosen,

    you maintain accounting data in the material master record for each plant or for each company code

    you define a valuation price for the material in each plant or in each company code

    Effect on G/L accounts:

    If material stocks are valuated at company code level, all plant stocks of a material are managed in a joint stock account for each company code.

    If material stocks are valuated at plant level, you can manage the material stocks for each plant in different accounts. For each plant, you can define a separate determination.

    If several plants are to use account determination, you can group these plants in "Valuation and Account Assignment" Customizing.

    Material Master - Introduction

    The material master is the starting point for the rest of the modules.

    What Material Types are there?

    The material types that you use are configured in Customizing for the Material Master under

    Logistics Master Data : Material Master -> Material -> Control data -> Define material type attributes.

    The following list shows you the material types contained, for example, in the standard SAP R/3 System, and what their different roles are:

    DIEN (services)

    Services are procured externally and cannot be stored. A material master record of this material type can always contain purchasing data.

    FERT (finished products)

    Finished products are produced by the company itself. Since they cannot be ordered by Purchasing, a material master record of this material type does not contain purchasing data.

    FHMI (production resources/tools)

    Production resources/tools are procured externally and used in the manufacture of products. A material master record of this material type can contain purchasing data, but no sales data. It is managed on a quantity basis. Examples of production resources/tools are apparatus, equipment, and measuring and testing devices.

    HALB (semifinished products)

    Semifinished products can be procured externally (sub-contracting) as well as manufactured in-house. They are then processed by the company. A material master record of this material type can contain both purchasing and work scheduling data.

    HAWA (trading goods)

    Trading goods are always procured externally and then sold. A material master record of this material type can contain purchasing and sales data.

    HIBE (operating supplies)

    Operating supplies are procured externally and required for the manufacture of other products. A material master record of this material type can contain purchasing data but no sales data.

    NLAG (non-stock material)

    Non-stock material is material that is not held in stock because it is consumed immediately. (Office supplies such as stationary. You need to create purchase order and accounting document for payment but the stock balance is always zero as it is issued out immediately to the various department.)

    ROH (raw materials)

    Raw materials are always procured externally and then processed. Since raw materials cannot be sold, a material master record of this material type contains no sales data.

    UNBW (non-valuated materials)

    Non-valuated materials are managed on a quantity basis, but not by value.

    VERP (packaging materials)

    Packaging materials are used to transport goods and come with the goods free of charge. A material master record of this material type is managed both on a quantity basis and by value.

    WETT (competitive products)

    Competitive products have their own material master records created from the Basic Data view. The competitor's number, which is stored in the material master record, assigns the material to a particular competitor.

    Maintain the Material Type

    OMS2 - Material Type Maintenance - Create/Change/Display


    transaction OMS2

    click Change

    key in the Material Type you want to change e.g. FERT then hit enter

    The Views belows allows you to choose the Views for each Material Type.

    (Press the Page up/Page Down keys to scroll the views)

    If you tried to change from FERT to HAWA in 4.6x, you will receive an error message :-

    The material type cannot be changed. This is not allowed if only external procurement is defined for the new material type, or if the new material type has a different account category reference than the old material type.

    To overcome it, goto OMS2 and change the HAWA material type.

    In the Internal/external purchase orders sections:

    Original Changes

    Ext. purchase orders 2 1

    Int. purchase orders 0 1

    Screens in Material Master

    MM01 - Create, MM02 - Change, MM03 - Display and MM06 - Flag for deletion.

    MM04 - Display the changes done to the material master.

    MMAM - Change the Material Type. for e.g. from FERT to HALB

    Configure the Material Master Screen MM01 / MM02 / MM03

    OMSR - Assign the field to the field group

    OMS9 - Maintain the data screen field

    Unit of Measure

    In the material master, there is a Units of measure button for users to store in the different conversion rate. This sample program (ZUNT) extract the data from the unit of measure conversion table.

    In the Material Master the moving average price are affected by:-

    Goods Receipt for Purchase Orders

    Transfer from Plant to Plant

    Invoice Receipt


    Price Change

    Common configuration changes-

    define new material group (OMSF)

    define new valuation class (OMSK) and automatic posting (OBYC)

    define new material account assignment group (transaction OVK5) and

    Customer/Material/Account keys (transaction VKOA)

    Block materials from inventory posting

    After blocking, when the user do a inventory posting, they will get this error message :-

    E: Material xxxxx has status Blocked for procmnt/whse

    To activate the blocking :-

    Goto transaction MM02 - Purchasing View

    Type in 01 at the MM/PP status field and save it

    Create Delivery Log - Material xxx is blocked

    During the Create Delivery (VL01), SAP prompt you a log that Material xxx is blocked.

    During the Sales Order Create/Change for that material, there might be some update termination that causes the locked of the material (Windows hanged or power failure).

    You can check using transaction SM12 - type an "*" at the User name field.

    Check whether the material is in the locked list.

    If it is in the locked list, asked the user to log out before you delete it from the locked list.

    Maintain Storage Location

    MMSC - Collective entry of Storage Location for a material.

    Insert new or delete un-used Storage Location.

    Maintain whether the storage location was included or excluded from MRP run.

    Block Storage Location from further posting

    1. You can block the storage location of a material without affecting the rest of the location using the same material.

    Create a Physical Inventory document for the storage location with transaction MI01

    Select the Posting Block checkbox.

    This would prevent transactions from occuring until you either post or delete the physical inventory document.

    (There are no impact, unless you do a post difference for the physical inventory document.)

    2. Another method is to rename the storage location name.

    Go to transaction OX09

    Edit -> Copy as (copy the original storage location to a new name, replacing the first character e.g. ZXXX)

    Edit -> Delete (delete the original storage location)

    Do the reverse if you want back the original storage location.

    Accounting document number range for MM

    Transaction OMW9

    Document Type - Double click on desire transaction code to check the document type for number range.

    (e.g. MR21 Document type - PR)

    Financial accounting document type - Assign the document type to a number range and account type.

    (e.g. PR - Account type allowed for posting will be MS)

    Double click on the document type PR.

    Assign an unique starting number range that was not used. e.g. 88

    Choose the Account type for Material and G/L account (MS)

    The rest of the fields are optional (you can leave it as blank)

    SAP definitions for account type -

    A - Assets

    D - Customers

    K - Vendors

    M - Material

    S - G/L accounts

    Number ranges for financial accounting document type - Assign the number range to the running number range.

    No. Year (till) From number To number Current number Ext (no tick internal or tick external)

    88 9999 8800000000 8899999999 Track by SAP Blank

    Accounting document will be generated if there are stocks during price change, if you don't have any stocks, no accounting document will be generated as there are no inventory to revaluate for price differences.

    Valuation Class for Material Group

    In 4.6x and 4.5b, you can assign valuation class to Material Group.

    It is useful in the sense that user do not have to manually do an Account Assignments.

    For stock items, valuation class cannot be changed whenever the stock on hand is not zero.

    Valuation class are tied to a G/L account.

    A change of valuation class means a change of G/L account.

    In FI concept, you have to debit and credit to balance the G/L account. That is why your stock must be zero before the system allows you to changed the valuation class. If it is not zero, you have to either transfer it to another material or do a dummy issues. After changing the valuation class, do a reversal entries for the stocks which you have transfer out or you have done a dummy issues.

    IMG - Material Management -> Purchasing -> Material Master -> Entry aids for items without a Material Master

    G/L Accounts in MM Account Determination

    The program RM07C030 check all the G/L account define in your Material Master valuation class.

    Search is via Company code and Valuation area.

    Compare fields status for movement types against General Ledger

    Use SA38 then run RM07CUFA

    PR >Release the PR>RFQ>Quotation>Quotation Comparison>PO>Release the PO>GR>Invoice Verification

    MM Process flow:

    Process Flow

    The typical procurement cycle for a service or material consists of the following phases:

    1. Determination of Requirements

    Materials requirements are identified either in the user departments or via materials planning and control. (This can cover both MRP proper and the demand-based approach to inventory control. The regular checking of stock levels of materials defined by master records, use of the order-point method, and forecasting on the basis of past usage are important aspects of the latter.) You can enter purchase requisitions yourself, or they can be generated automatically by the materials planning and control system.

    2. Source Determination

    The Purchasing component helps you identify potential sources of supply based on past orders and existing longer-term purchase agreements. This speeds the process of creating requests for quotation (RFQs), which can be sent to vendors electronically via SAP EDI, if desired.

    3. Vendor Selection and Comparison of Quotations

    The system is capable of simulating pricing scenarios, allowing you to compare a number of different quotations. Rejection letters can be sent automatically.

    4. Purchase Order Processing

    The Purchasing system adopts information from the requisition and the quotation to help you create a purchase order. As with purchase requisitions, you can generate Pos yourself or have the system generate them automatically. Vendor scheduling agreements and contracts (in the SAP System, types of longer-term purchase agreement) are also supported.

    5. Purchase Order Follow-Up

    The system checks the reminder periods you have specified and - if necessary - automatically prints reminders or expediters at the predefined intervals. It also provides you with an up-to-date status of all purchase requisitions, quotations, and purchase orders.

    6. Goods Receiving and Inventory Management

    Goods Receiving personnel can confirm the receipt of goods simply by entering the Po number. By specifying permissible tolerances, buyers can limit over- and underdeliveries of ordered goods.

    7. Invoice Verification

    The system supports the checking and matching of invoices. The accounts payable clerk is notified of quantity and price variances because the system has access to PO and goods receipt data. This speeds the process of auditing and clearing invoices for payment.

    Pur info record is nothing but a master data like thing which will be maintained for different materials to determine the prices etc.It Specifies the number that uniquely identifies a record.

    For Example: an info record is based on Plant Vendor and Material

    Based on these three the Material Prices will be calculated

    for different combinations different values are taken into consideration.

    During pricing it brings these values automatically based on this info record.

    Use ME11 Tcode to create this record.

    Common Tables used by SAP MM

    Below are few important Common Tables used in Materials Management Modules:

    EINA Purchasing Info Record- General Data

    EINE Purchasing Info Record- Purchasing Organization Data

    MAKT Material Descriptions

    MARA General Material Data

    MARC Plant Data for Material

    MARD Storage Location Data for Material

    MAST Material to BOM Link

    MBEW Material Valuation

    MKPF Header- Material Document

    MSEG Document Segment- Material

    MVER Material Consumption

    MVKE Sales Data for materials

    RKPF Document Header- Reservation

    T023 Mat. groups

    T024 Purchasing Groups

    T156 Movement Type

    T157H Help Texts for Movement Types

    MOFF Lists what views have not been created

    A501 Plant/Material

    EBAN Purchase Requisition

    EBKN Purchase Requisition Account Assignment

    EKAB Release Documentation

    EKBE History per Purchasing Document

    EKET Scheduling Agreement Schedule Lines

    EKKN Account Assignment in Purchasing Document

    EKKO Purchasing Document Header

    EKPO Purchasing Document Item

    IKPF Header- Physical Inventory Document

    ISEG Physical Inventory Document Items

    LFA1 Vendor Master (General section)

    LFB1 Vendor Master (Company Code)

    NRIV Number range intervals

    RESB Reservation/dependent requirements

    T161T Texts for Purchasing Document Types


    RFQ to Vendor - ME41

    Raising Quotation - ME47

    Comparison of Price - ME49

    Creation of PO - ME21N

    Goods Receipt - MIGO

    Invoice (Bill PAssing) - MIRO

    Goods Issue - MB1A

    Physical Inventory - MI01( Create doc)

    MI04 (Enter Count)

    MI07 (Post)

    check this out






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  • author's profile photo Former Member
    Former Member
    Posted on Jul 13, 2007 at 10:50 PM

    Hello Reddy KS,

    Please go through the first thread of this forum which is specially dedicated for the new guy in MM/WM area.

    All guys,

    <b>Please DO NOT make this thread LONG by asking configuration document as it is already available in the first thread of this forum.</b>

    Hope this helps.


    Arif Mansuri

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  • author's profile photo Former Member
    Former Member
    Posted on Apr 25, 2011 at 11:31 AM

    Hi Sanjay,

    Pls send me MM configuration doc on my yahoo id also.

    Thanks & Regards

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