SAP MM Configuration Tips and Tricks
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
Bx2
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
Steps:-
- 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
- Settlement
- 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
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