You can modify a service in a task by editing the various properties of the service using the Bindings view.
To modify service properties
1. In the Solutions view, double-click the task you want to work with to open it in the editor.
2. In the Bindings view, expand Services and then expand the service you want to work with to view all of the default properties of the service; to see all available properties, click in the Bindings view toolbar.
3. Click or expand the property element you want to work with; for example:
Click Endpoint Address and modify the address values as required in the Properties view.
Expand Authentication Info and modify the following values as required in the Properties view:
User Name
Password
When a binding expression is needed, type it into the appropriate box in the Properties view or click to select a binding expression.