Shopping Cart (Wizard) 
The Wizard is the default user interface for employees and is used for creating shopping carts in the Employee Self-Services Work Center in the SAP NetWeaver Portal. It helps employees to find, select, and add goods or services to their shopping carts quickly and easily.
Integration
This function is used in the business scenario Self-Service Procurement.
You can use the Business Add-In (BAdI) Change Display in Shopping Cart to override the standard settings of the interface and tailor the interface to fit the requirements of your enterprise. You can access this BAdI in Customizing for SAP Supplier Relationship Management under
SRM Server 
Business Add-Ins (BAdIs) Shopping Cart and Requirement Items Change Display in Shopping Cart 
.
Features
You can fill a shopping cart in the following ways:
Find: The catalogs that support cross-catalog searches are displayed in a separate field. You can enter a search term and start the search.
Browse: You can search for products in individual catalogs, or you can transfer individual items or even entire shopping carts from old purchase orders and templates to your new shopping cart.
Free Text: If you have not been able to find an appropriate product in the catalogs, you can enter a description of the required goods or services.
Once you have filled your shopping cart, you can display an overview of the budget, including the overall budget and how much of the budget amount has been assigned. You can either order the shopping cart straight away or save it for subsequent completion.
Once you choose Order, you receive a confirmation that states the number and the name of the shopping cart.
You can then:
Print the shopping cart
Create a new shopping cart