SAP MM General Logistics Configuration and Setup

 Step 1: Assign Fields to Fields Selection Groups (Tcode OMSR)

Assignment of Material Master Fields is required to define whether a field is hidden or displayed, or whether an entry is mandatory or optional in material master maintenance, it is always advisable to work with Standard SAP settings, but for few business requirement some assignments are changed to new field selection groups defined as per reserved name space.

Step 2: Maintain Field Selection for Data Screens 

Tcode OMS9

In this step we define the nature of a Field belonging to a particular Field Selection Group wrt the Screen Reference of a Material Type. Steps involved are :

• Selecting the field selection group.

• Select the field selection option (hide, display, required entry, or

  Optional entry) for each field reference as required.

Step 3: Maintain Company Codes for Material Master 

Tcode OMSY

This activity is done for making a Company Code relevant for materials Management and to define the starting posting period This is a prerequisite for creating a Material Master 

Step 4: Define Attributes of Material Types

Tcode: OMS2

All the important attributes of a material are governed by settings in the material type. It governs :

1. Number range pattern and nature (external/internal)

2. Hide/optional fields in the material master

3. Valuation Control at valuation area level (ultimately used to derive G/L)

4. Control on Production/Purchase 

Step 5: Define Number ranges for each material type 

Tcode: MMNR

Step 6: Define Attributes of system messages 

Tcode OMT4

When processing material master records, the system issues a number of system messages containing important user information. In this activity, we define how the SAP system handles these messages. We have the following options:

• The message can be suppressed.

• The message can be displayed as a warning.

• The message can be displayed as an error message. (can’t be

  surpassed) 

Step 7: Define Material Groups 

Tcode OMSF 

Step 8: Define External Material Groups 

Logistics - General > Material Master > Settings for Key Fields > Define External

Material Groups 

Here we define the Groups for giving an extra key for filtering, sorting the list of materials from a criterion other than Material grouping

Step 9: Initialize Period 

Tcode MMPI