Database Reference

Flex Shipping keeps the customer-facing method, its rates and its eligibility rules separate. This lets one shipping method support several rate tiers and rule conditions.

Relationship Why it matters
flex_shipping_method belongs to one store_website Limits the shipping method to the website where it is configured.
flex_shipping_rate belongs to one flex_shipping_method Stores the prices or tiers evaluated for that method.
flex_shipping_rule belongs to one flex_shipping_method Controls when the method is available for a cart or customer.
flex_shipping_audit belongs to one store_website Keeps evaluation and change history within the correct website scope.

This overview does not document rule payloads or internal audit columns. Configure methods through Magento Admin.