Transaction Object User Exit
The Transaction Object User Exit provides a mechanism for third parties to extend the transaction processing logic of SAP POS. The Transaction Object User Exit is based on Microsoft’s Component Object Model (COM) technology. Transaction Object User Exit implementations (referred to as “Transaction Components”) are COM components and the POS provides services to these components through COM interfaces. A Transaction Component plugs into SAP POS to extend its functionality through well-defined interfaces. The Transaction Object User Exit provides the ability to perform a wide variety of operations, such as:
Gathering input from the POS operator
Displaying information on the POS screen
Adding or removing merchandise and non-merchandise items to and from a transaction
Adding or removing item and transaction discounts to and from a transaction
Modifying the content of receipts.
SAP POS supports multiple simultaneously active Transaction Components. The only limitation on the number of components in use at one time is the memory capacity and processing power of the POS system, and the runtime performance of the individual components. For more information about how
to develop a Transaction Component, see the SAP POS 2.3 Transaction Object User Exit Technical Reference
.