SAP Transaction OMMU: A Step-by-Step Tutorial for SAP Users

Welcome to our tutorial on SAP transaction OMMU, an essential transaction code used in SAP Materials Management (MM) module. In this tutorial, we will provide you with a detailed guide on how to effectively utilize OMMU for managing material master data in your SAP system. Whether you are a beginner or an experienced SAP user, this tutorial will equip you with the necessary knowledge to navigate through OMMU seamlessly.

Before we delve into the details, we would like to introduce you to our valuable resource that can enhance your SAP MM skills and help you become an expert in the field. Check out the SAP MM online video training offered by our expert SAP MM consultant, available at roadtoexpert.com. This comprehensive training program will provide you with in-depth knowledge and practical insights to boost your proficiency in SAP MM and accelerate your career growth.

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

What is SAP Transaction OMMU?

SAP Transaction OMMU (Material Master Data: Maintenance) is a crucial transaction code used in SAP MM to manage material master data. It allows users to create, change, and display material master records, which contain detailed information about materials used in an organization. With OMMU, you can efficiently maintain and update material master data, ensuring accurate and up-to-date information for effective inventory management.

Step 1: Accessing SAP Transaction OMMU

To start using OMMU, 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.”
6. Next, choose “Material” and click on “Material” again to proceed to the OMMU transaction.

Step 2: Understanding OMMU Transaction Screen

Once you have accessed OMMU, you will encounter the OMMU 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.
• Organization Data: Here, you can maintain information related to the organizational aspects of the material, such as the plant where the material is stored, the storage location, and the valuation class.
• Purchasing: This tab allows you to manage purchasing-related data for the material, such as the purchasing group, purchasing organization, and vendor details.
• Sales: In this tab, you can maintain sales-related data for the material, including pricing conditions, sales organization, and distribution channel.
• Plant Data: Here, you can specify plant-specific data for the material, such as the storage location data, production data, and inventory management settings.
• Accounting: The accounting tab displays accounting-related information for the material, such as general ledger (G/L) accounts, cost centers, and profit centers involved.
• Additional Data: In this tab, you can find any additional custom fields specific to your organization’s requirements.

Step 3: Creating a Material Master Record with OMMU

To create a material master record using OMMU, 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 you are creating.
   • 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 represents the material.

2. Move to the “Organization Data” tab and enter the following details:

   • Plant: Select the plant where the material is stored.
   • Storage Location: Choose the appropriate storage location for the material.
   • Valuation Class: Specify the valuation class for the material.

3. Proceed to fill in the relevant data in the “Purchasing,” “Sales,” “Plant Data,” and “Accounting” tabs, based on your organization’s requirements.
4. Once you have entered all the necessary information, click on the “Save” button to create the material master record.

Congratulations! You have successfully created a material master record using SAP transaction OMMU.

Step 4: Exploring Additional Functionality

SAP transaction OMMU offers various additional functionalities to streamline your material master data management processes. Here are some notable features you can leverage:

• Change Material Master Record: OMMU allows you to modify existing material master records. You can edit fields such as material description, purchasing details, sales data, and more. Simply enter the material number and make the necessary changes.
• Display Material Master Record: Use OMMU to display existing material master records by entering the material number and other relevant criteria. This allows you to review and access detailed information about materials in your organization.
• Mass Maintenance: OMMU supports mass maintenance functionality, which allows you to make changes to multiple material master records simultaneously. This feature saves time and effort when updating material data in bulk.
• Integration with Other SAP Modules: OMMU seamlessly integrates with other SAP modules, such as Sales and Distribution (SD), Production Planning (PP), and Controlling (CO). This integration ensures consistent and accurate data across various organizational processes.

Conclusion

In this tutorial, we have provided you with a comprehensive guide on using SAP transaction OMMU in the SAP MM module. We covered the basics of OMMU, explained how to create a material master record, and explored additional functionalities. Remember, continuous learning and practice are key to becoming proficient in SAP MM.

To further enhance your skills in SAP MM, we highly recommend our SAP MM online video training, designed by our expert SAP MM consultant. This training program offers comprehensive modules and hands-on exercises to help you become an SAP MM expert. Visit roadtoexpert.com to learn more and take your SAP MM skills to new heights.