we will see how to load data into the MasterData InfoObjects. Also, we have to keep in mind that from data integrity and load performance point of view, we have to load the MasterData before loading the transactional data into InfoCubes or DSOs. We know that BW is a Datawarehouse system and data will be loaded into BW from many sources like SAP R/3, other Databases and flatfiles. In this post we will discuss about how to load data from a flatfile. STEP 1.A Select SOURCE SYSTEM under Modelling(T-code:RSA1).In the right panel, Context Menu (right-Click) on sources systems and select Create.

STEP 1.B Select the File System (Manual Metadata, Data using File Interface) option, and then click to continue.

STEP 1.C Enter Logical Name & Description for the source system, and then click source system. to create the

Result: The flatfile source system will be created. Status message Source system SS_DEMOFF creation successful finished will appear at the bottom of screen as shown below.

STEP 2: Creating Application Component

In BW, Data Sources & Info Packages are organized using a tree structure called Application components. Next, we will create the application component under our source system SS_DEMOFF. STEP 2.A Select the Data source under Modelling in the left panel. In the right panel click to choose source system from Drop down Menu & select the SS_DEMOFF source system.

In the Right Panel right click on Data sources for SS_DEMOFF DEMO SS Flat File. Select Create Application component..

STEP 2.C Enter a name and a Description for the application component, and then click to continue.

RESULT: The application component has been created. NOTE: BW adds a Prefix of Z to the technical names of application components, unlike the naming system used for other BW Objects. STEP 3 Creating Data Source for characteristic Data Before you transfer data from a file source system, the metadata (the file and field information) must be available in BI in the form of a Data Source.

Select Data source under Modelling in left panel, Right click on Application ComponentDemo, select Create data source.

STEP 3.B Enter the name for Data source & select the Master Data Attributes from Data Type Data source.

In right panel Creation of Data source screen will be displayed with General, Extraction, Proposal, Fields and Preview Tabs. Make the corresponding setting in the tabs for loading the data. STEP 3.C Under General Tab Select potions as shown in the screen. Enter Short, Medium, Long Description

STEP 3.D Click on Extraction Tab, Select options as shown in the screen. Enter the file name with path. The file contains the data about Material attributes. Select Separated with separator (For example, CSV) in Data Format. Enter , as Data Separator NOTE: The data file can reside on a front-end computer ( or client workstation as it is called here) or one of the application servers in the SAP Basis three-tier architecture. In our example, MAT_ATTR.CSV resides in our front-end computer. For better loading performance, it is recommended that you place data files in application server computers.

STEP 3.E Proposal Tab: This tab page is only relevant for CSV files. For files in different formats, define the field list on the Fields tab page. Here you create a proposal for the field list of the Data Source based on the sample data from your CSV file. a) Specify the number of data records that you want to load and choose Upload Sample Data. b) The data is displayed in the upper area of the tab page in the format of your file. c) The system displays the proposal for the filed in the lower area of the tab page. d) In the table of proposed fields, Use Copy to Filed List to select the fields you want to copy to the filed list of the Data source. All fields are selected by Default. e) Change the Format to the internal format if External format is selected by default. Click to activate the Data source.

After successful activation, Under Preview Tab clicks on Read Preview Data to see the Preview of the data that to be loaded to into Info Provider with selected no of records.

STEP 4 Creation of Info Package. The Info Package loads into the PSA only. Data is distributed within the BI system with the data transfer process. Only the parameters that are not already defined in the Data Source are defined on the tabs of the Info Package maintenance.

In Left Panel Select the Data source under Modelling, In right panel, Right Click on Attributes for Material Data Source under Application Component Demo, Select Create Info Package..

Enter Description for Info Package, click to Continue.

Click the schedule tab, select the option start immediately, and then click

to load data.

STEP 5 Before loading to Master data to the CHAR Info object, we should convert the CHAR to Info Provider, by assigning the Info Area to the CHAR info object definition screen. In left panel, Select Info objects under modelling, right click on MAT_IO Char Info Object then select Change Enter Info Area name DEMO_IA, under Character is Info Provider Check box. (See the below Screen for details) , click to to activate the Info Object .

You can see the MAT_IO is shown under DEMO_IA Info Area in Info Providers under Modelling.

STEP 6 Create transformation In Left Panel, select Info Provider under Modelling, Right Click on Material Number (Attribute) under Material Number (MAT_IO) Char Info Object in right panel. Select Create Transformation

Enter Object Type as Data Source, Enter name of the data source MAT_IO_ATTR_DS created previously with the Source System name. Click to continue.

The system proposes a transformation. You can use this transformation as it is, or modify it to suit your requirements. To the left of the screen, you see the source; to the right of the screen, you see the rule group. To show the target as well, choose Switch Detail View On/Off.

Click to

activate the transformation.

RESULT: The transformation is created with the corresponding data transfer process.

STEP 7 Creating Data transfer Process STEP 7.A In left Panel select Info Provider under Modelling, Double-Click on Data Transfer Process under Material Number (Attribute) in the right panel.

Click

to continue.

STEP 7.B Under Extraction tab, Change Extraction mode to FULL Click to activate the DTP.

STEP 7.C Go to Execute tab click to execute the Data Transfer Process.

Press YES to Continue.

Monitor will be displayed with loading status. Everything Green means Data is loaded successfully. STEP 7.D

STEP 7.E We can check the data in Info provider by clicking the manage button in the monitor