POS Interface - Outbound: Master Data Preparation 
Purpose
This business process allows you to prepare data in the form of intermediate documents (IDocs) for transfer via the POS interface to POS systems.
Merchandise is usually sold in stores at electronic cash registers (POS systems). The cash registers must be provided with data such as EAN/UPC numbers, sales prices and merchandise categories. In addition to the initial data, the cash registers must be continually supplied with changes made to the master data (such as price changes).
SAP Retail supports the following three procedures:

Master data can also be prepared for transfer to the POS systems with the help of the assortment list. However, this method is considerably more complex than preparation of master data at POS interface - outbound, since considerably more data (order and allocation table data) has to be processed. The assortment list is recommended if retailing functions (such as the entry of a goods receipt) are also to be carried out.
Process Flow
Notes and Remarks