As long as the web service is functionally the same, you just need to modify the Url in the send port.
You can do this using the admin console or by importing a binding file.
This is a common scenario, where a test web service is used in dev/test while the production web service is only used in the production environment.
You can have multiple binding files, one per environment. You can deploy all binding files using a Target environment name. You can then export all binding files into an MSI for deployment. As part of the MSI import you will be prompted for the target environment name and the appropriate binding file will be deployed.