You can set an unlimited amount of checkout rules to make some shipping options available only when a user enters or selects the specific value of a checkout field.
Usage example: if you want to limit a shipping option only for a specific country or state.
In the following screenshot, three rules are set for the Country drop-down:
- Shipping Option named the USA for the United States
- Shipping Option named Canada for Canada
- Shipping Option named World for any other value