Percentage Shipping Fee for WooCommerce

This plugin adds a custom shipping method to WooCommerce that charges your customers a shipping fee based on a percentage of the cart subtotal.

Key Features:

• Define a shipping percentage per zone.
• Fully integrated with WooCommerce shipping zones.
• Lightweight and simple to use.
• Supports multiple zones and instances with different values.

1.3.1

• Fix: Added safe WC()->cart checks before accessing cart subtotal to prevent fatal errors outside cart context.
• Fix: Restored compatibility with AISP Order Tools admin minimum shipping bypass logic.
• Fix: Added sanitize_callback for Allowed User IDs field to ensure only valid positive integers are saved.
• Fix: Unified default shipping percentage value to 9% for consistent behavior.
• Improve: Added clearer inline code comments for better maintainability.
• Improve: Cleaned up and standardized shipping method class structure.

1.3.0

• Added: Support for restricting Free Shipping by User ID. Free shipping can now be limited to specific customers via the shipping method settings.
• Improved: Refactored the plugin structure into multiple class files for better maintainability.
• Improved: Shipping logic to ensure correct availability based on user eligibility and cart subtotal.

1.2.1

• Improved: Added compatibility groundwork for future integration with AISP Order Tools to bypass shipping minimum fees for administrators managing orders manually.
• Improved: Prepared optional integration support for future AISP Order Tools compatibility.

1.2.0

• Added: Per-zone minimum shipping cost support for the Percentage Shipping method.
• Added: Enable/disable checkbox for minimum shipping enforcement directly in each shipping zone instance.
• Added: Editable minimum shipping amount field per shipping zone.

1.1.0

• Added: New "Free Shipping" method.
• Improved: The "Percentage Shipping" method is now automatically hidden when "Free Shipping" is available.

1.0.1

• Improved: Tested and confirmed compatibility with WooCommerce 10.2.

1.0.0

• Initial release with percentage-based shipping cost support.