To parameterize the endpoints in SOAP UI is most important as it is the first step in automation testing. It is more time consuming for changing endpoints manually. In order to do that
Define a project property holding the endpoint
Change the endpoint to use this property via property expansion
Ensure that your requests are availing the configured endpoint
When a request is run, the property will inevitably be with its current value. To use a different value just configure the endpoint in the UI, you can use the P option from the command line
