How do I enable the In-Cart Delivery Option for Magento?

The In-Cart Delivery Options feature allows you to configure what shipping options and rates are available to your customers during checkout.

For ShipStation to successfully send the rates you configured in the Magento Delivery Options tab to your Magento checkout, you must have installed the most up-to-date plug-in (2.3+) for your Magento store. No additional steps are needed within your Magento account to enable this feature.