Transfer Structure 

Definition

The transfer structure is the structure in which the data is transported from the source system into the SAP Business Information Warehouse.

It is a selection of DataSource fields from a source system.

Use

The transfer structure provides the BW with all the source system information available for a business process.

An InfoSource in BW requires at least one DataSource for data extraction. In a SAP source system, DataSource data that logically belongs together is staged in flat structure of the extract structure. In the source system, you have the option of filtering and enhancing the extract structure in order to determine the DataSource fields.

In the transfer structure maintenance screen, you specify the DataSource fields that you want to transfer into the BW. When you activate the transfer rules in BW, a transfer structure identical to the one in BW is created in the source system from the DataSource fields.

The data is transferred 1:1 from the transfer structure of the source system into the BW transfer structure. From here it is transferred, using the transfer rules, into the BW communication structure.

A transfer structure always refers to a DataSource in a source system and an InfoSource in a BW.

You get to the maintenance screen for the transfer structure through the InfoSource tree of the Administrator Workbench. Alternatively, you can access the maintenance screen by selecting the Maintain Transfer Rules function from the context menu of the source system belonging to an InfoSource.