Configuring the Web Service in the SAP NetWeaver Administrator 
You use SAP NetWeaver Administrator to provide a Web service with runtime settings. During the runtime you enable secure communication between the Web service and the Web service client application via a secure proxy. To enable secure communication you have to configure a secure service endpoint on the Web service and at a later stage, a secure logical port on the Web service client.
Prerequisites
The Web service is deployed and started on the application server.
Procedure
Log on to the SAP NetWeaver Administrator.
If prompted, enter administrator username and password.
Choose
SOA Management 
Application and Scenario Communication Single Service Administration 
.Alternatively, you can use the quick link /ssadmin as follows:
http://localhost:<port>/nwa/ssadmin
You can construct <port> by the formula 5 + NN + 00, where NN is the number of the Java instance.
The Single Service Administrationscreen opens.
Choose the Service Definitions tab.
In the Findfield, enter *ConverterBean.
In the Search by dropdown list, choose Internal Nameand then choose Go
In the results list, choose ConverterLocal.
Choose the Configuration tab, and then choose New.
In the Service Endpoint Name field, enter ConverterBeanPort.
In the Add toservice field, enter Converter_Service and then choose Next.
On the Securitystep, proceed as follows:
In the Transport Protocolscreen area, choose HTTP.
In the HTTP Authenticationscreen area, select only User ID/Password.
In the Message Authenticationscreen area, deselect all options.
Choose Next, and then choose Finish.
Result
You configured runtime settings of the Web service. You can now consume the Web service only if you provide username and password.