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What is ERP?

ERP stands for Enterprise Resource Planning.

Enterprise Resource Planning systems integrate all data processes of an Oraganization into unified system.

The key feature of an ERP system is it uses a single or Unified database to store data for the various system modules.

Various Modules which comes under ERP are listed below:

i.Manufacturing
ii.Supply Chain
iii.Financials
iv.CRM
v.Human Resources
vi.Warehouse Management

What is SAP ?

SAP stands for Systems Applicatios and Products in Data Processing.

SAP AG has released SAP R/2 Version initially.The architecture of the R/2 system is Mainframe Architecture.

Later SAP R/3 is released which has different from R/2 architecture.

R stands for RealTime.
3 stands for 3 Tier Architecture.

There are over 120,000 installations at more than 30000 Companies.SAP Products are used over 15 millon People in more than 125 countries.

Screens in Material Master

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.

3 comments:

Anonymous said...

Hi There,

How abt the case that said user hav MRP1, MRP2, MRP3, MRP4, Acc1, Acc2, Costing1, Costing2 view in MM01.

How can we limit its view to Acc1, Acc2, Costing1, Costing2 view only ?

Which table shall we maintain?

Thanks in advance.

Unknown said...

good guidence and the following of the content is so helpfull and usefull. SAP SECURITY TRAINING

Unknown said...

Good Sharing. Keep going on. I sincerely hope that your blog is a fast-growing traffic density, and to help promote your blog. The MRP 1 view is the first of 4 MRP views on the material master. The MRP 1 VIEW is a place holder for defining the Planning methods and lot sizing procedures of a give material at a plant/storage location level.
MRP Views in Material Master SAP

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