Maintaining data in a master file includes adding new records, deleting old records, and changing existing records. Here is how you change a record on the Material Master:
From the main menu, choose Logistics, Materials Management, Material Master.
Choose Material, Change, Immediately. (With R/3, you also can set up a change ahead of time that will take effect on a certain date.) The Change Material: Initial Screen appears (see Figure 15.1), asking you what material you want to change.
You've probably guessed by now that you can key the value in directly or choose it from a matchcode list. Enter the value of a known material. The Select View(s) dialog box appears (see Figure 15.2).
Tip
Is Your List Different? Your installation may have different views available for your materials. Different materials may also have different views available.
You can pick one or more of these views to control which fields are displayed. This is especially useful if only one particular field is important for your job (such as "weight" to a shipping clerk or "price" to a marketing rep). For now, pick Basic Data and click the Enter tool button. After you enter the plant number, the Change Material: Basic Data screen appears (see Figure 15.3).
Scroll down to the Net Weight field. Type 2 and press Enter. SAP displays the message The net weight is greater than the gross weight (see Figure 15.4). This message makes sense—the net is 2, and the gross is nothing because you haven't entered one.
Enter a unit of weight (such as KG). Or, move to the Unit of Weight field, click the down arrow to access the list of valid entries on your system, and choose an entry.
Press Enter to have SAP R/3 check the data checks for this screen. SAP R/3 displays the dialog box in Figure 15.5.
Table 15.1 lists some common master files used by various SAP R/3 modules. Most SAP R/3 users will see only a small number of these tables in their jobs. (For a description of the various SAP R/3 modules, refer to the appendixes.) Some master files are like a table (relational), such as the Material Master. Other lists are like an org chart (hierarchical), such as the Functional Locations.
In this lesson, you learned what master data is and how to maintain it. You saw that every module uses some kind of master data and that many master files are shared between modules. In the next lesson, you learn how to use user parameters to cut down on the typing you have to do when creating new business documents.
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