fluent_cart/checkout_address_fields

The fluent_cart/checkout_address_fields filter changes the address-field definitions used by FluentCart checkout. A callback receives the fields and accompanying data, modifies the required definitions, and returns the resulting field array. For example, it can add an optional company field with a customer-facing label. Register it as a WordPress filter with the documented accepted argument count. Returning the array matters because an action-style callback without a return value can disrupt the checkout configuration.