Here are a few things you need to know before using carrier-based shipping settings while submitting your feed in Google Merchant Center.

You can use this setting if you charge shipping based on a carrier-calculated rate. You can choose from supported carriers (for example, UPS, TNT, Hermes) and services (for example, Ground, Next Day Air, 3 Day Select) available.

Here is the list of countries that support carrier-based shipping.

To use carrier rates, you’ll also need to submit shipping-related attributes:

• shipping_weight
• shipping_length
• shipping_width
• shipping_height