SAP Transaction OMMD: A Comprehensive Guide for SAP Users

Welcome to our tutorial on SAP transaction OMMD, an essential transaction code used in SAP Materials Management (MM) module. In this tutorial, we will provide you with a step-by-step guide on how to effectively use OMMD to manage material master data in your SAP system. Whether you are a novice SAP user or an experienced consultant looking for a refresher, this tutorial will equip you with the necessary knowledge to navigate through OMMD seamlessly.

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Now, let’s begin our tutorial on using SAP transaction OMMD.

What is SAP Transaction OMMD?

SAP Transaction OMMD (Material Master Data) is a crucial transaction code used in SAP MM to create, change, and display material master data. Material master data contains all the essential information about a material, such as its description, attributes, and classification. OMMD allows users to maintain accurate and up-to-date material master data, ensuring smooth procurement, production, and inventory processes.

Step 1: Accessing SAP Transaction OMMD

To start using OMMD, follow these steps:

1. Log in to your SAP system using your user ID and password.
2. Launch the SAP Easy Access Menu.
3. Navigate to the “Logistics” folder and expand it.
4. Locate and click on the “Materials Management” folder.
5. From the sub-menu, select “Material Master” and click on “Material” to proceed to the OMMD transaction.

Step 2: Understanding OMMD Transaction Screen

Once you have accessed OMMD, you will encounter the OMMD transaction screen, which consists of various fields and tabs. Let’s explore each of them:

• General Data: This section contains the main fields for entering general information about the material, such as material type, base unit of measure, and material group.
• Accounting Data: Here, you can maintain accounting-related information for the material, such as valuation class, price control, and cost center.
• Sales Data: This tab allows you to manage sales-related information for the material, such as sales organization, distribution channel, and pricing conditions.
• Purchasing Data: In this tab, you can maintain purchasing-related information for the material, such as purchasing organization, purchasing group, and supplier details.
• Plant Data: The plant data tab enables you to configure plant-specific settings for the material, such as storage location, production data, and work scheduling.
• MRP Data: Here, you can define material requirements planning (MRP) parameters for the material, such as reorder point, safety stock, and planning horizon.
• Warehouse Management: This tab allows you to set up warehouse-specific information for the material, such as storage bin, handling units, and putaway strategy.
• Classification: In this tab, you can assign classification values to the material, such as product hierarchy, industry sector, and material status.
• Additional Data: The additional data tab provides additional fields for entering any custom or organization-specific information about the material.

Step 3: Creating Material Master Data with OMMD

To create material master data using OMMD, follow these steps:

1. Start by filling in the necessary fields in the “General Data” section:

   • Material Type: Select the appropriate material type for the material, such as finished product, raw material, or spare part.
   • Base Unit of Measure: Specify the base unit of measure for the material, such as pieces, kilograms, or liters.
   • Material Group: Choose the material group that best categorizes the material.

2. Move to the relevant tabs (Accounting Data, Sales Data, Purchasing Data, Plant Data, MRP Data, Warehouse Management, Classification, Additional Data) and enter the required information for each section.
3. Once you have entered all the necessary information, click on the “Save” button to create the material master data.

Congratulations! You have successfully created material master data using SAP transaction OMMD.

Step 4: Changing and Displaying Material Master Data

In addition to creating material master data, OMMD also allows you to change and display existing material master data. Here’s how:

• To change material master data, enter the material number in the “General Data” section and make the necessary modifications in the relevant tabs. Click on the “Save” button to save the changes.
• To display material master data, enter the material number in the “General Data” section and navigate through the tabs to view the information. You can review all the details entered during material creation.

Conclusion

In this tutorial, we have provided you with a comprehensive guide on using SAP transaction OMMD in the SAP MM module. We covered the basics of OMMD, explained how to create, change, and display material master data. Remember, maintaining accurate and up-to-date material master data is essential for efficient procurement, production, and inventory processes.

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