Hook alternatives

These are the hooks that run when loading the Cart/Checkout shortcodes and blocks. Some are general WooCommerce lifecycle hooks, some are specific to the Cart and Checkout pages. These were generated by logging each call to do_action and apply_filters and reviewing the issues mentioning "hooks" and "filter(s)" in the old WooCommerce Blocks repository.

Legend

Icon	Description
✅	Fully supported
🔶	Partially supported
❌	Not supported
❓	Unknown

If a hook is marked as Unknown ❓(Unknown) it means we were not able to verify whether the hook is supported for some reason. As time goes on, we will attempt to validate more of these hooks. The goal is to have no hooks with an Unknown ❓status remaining in any of the tables.

WooCommerce lifecycle actions

These hooks run on every Woo page load, some affect the blocks, some don't, some only affect them partially.

Old hook	Works in blocks?	Notes
woocommerce_load_cart_from_session	Fully supported ✅
woocommerce_cart_loaded_from_session	Fully supported ✅
woocommerce_set_cart_cookies	Fully supported ✅
woocommerce_shipping_zone_loaded	Fully supported ✅
woocommerce_check_cart_items	Fully supported ✅	May be better to use woocommerce_store_api_validate_cart_item
woocommerce_before_calculate_totals	Fully supported ✅
woocommerce_shipping_init	Fully supported ✅
woocommerce_load_shipping_methods	Fully supported ✅
woocommerce_cart_calculate_fees	Fully supported ✅
woocommerce_calculate_totals	Fully supported ✅
woocommerce_after_calculate_totals	Fully supported ✅
woocommerce_cart_updated	Fully supported ✅
woocommerce_before_get_rates_for_package	Fully supported ✅
woocommerce_after_get_rates_for_package	Fully supported ✅
woocommerce_checkout_init	Fully supported ✅
woocommerce_customer_loaded	Fully supported ✅

WooCommerce lifecycle filters

Old hook	Works in blocks?	Notes
woocommerce_notice_types	Unknown ❓	WC Blocks does not handle additional notice types outside of the core ones. Non-supported notices would be displayed as "info" notices.
woocommerce_kses_notice_allowed_tags	Unknown ❓
woocommerce_product_get_stock_status	Fully supported ✅
woocommerce_product_is_in_stock	Fully supported ✅
woocommerce_product_get_manage_stock	Unknown ❓
woocommerce_product_get_tax_class	Fully supported ✅
woocommerce_product_get_tax_status	Unknown ❓
woocommerce_prices_include_tax	Unknown ❓
woocommerce_apply_base_tax_for_local_pickup	Unknown ❓
woocommerce_local_pickup_methods	Not supported ❌	Does not affect the blocks-based local pickup methods
woocommerce_customer_get_shipping_postcode	Fully supported ✅
woocommerce_customer_get_shipping_city	Fully supported ✅
woocommerce_customer_taxable_address	Unknown ❓
woocommerce_shipping_methods	Fully supported ✅
woocommerce_format_localized_price	Unknown ❓
woocommerce_shipping_local_pickup_option	Not supported ❌	Does not affect the blocks-based local pickup methods
woocommerce_shipping_pickup_location_option	Unknown ❓	Unsure if changing this changes the way local pickup shows in the Cart/Checkout
woocommerce_shipping_method_supports	Fully supported ✅
woocommerce_get_tax_location	Unknown ❓
woocommerce_format_postcode	Unknown ❓
woocommerce_matched_tax_rates	Unknown ❓
woocommerce_find_rates	Unknown ❓
woocommerce_matched_rates	Unknown ❓
woocommerce_cart_totals_get_item_tax_rates	Fully supported ✅
woocommerce_adjust_non_base_location_prices	Unknown ❓
woocommerce_product_is_taxable	Fully supported ✅
woocommerce_price_ex_tax_amount	Fully supported ✅
woocommerce_tax_round	Fully supported ✅
woocommerce_calc_tax	Fully supported ✅
woocommerce_calculate_item_totals_taxes	Fully supported ✅
woocommerce_cart_ready_to_calc_shipping	Fully supported ✅
woocommerce_product_get_virtual	Fully supported ✅
woocommerce_is_virtual	Fully supported ✅
woocommerce_product_needs_shipping	Fully supported ✅
woocommerce_cart_needs_shipping	Fully supported ✅
woocommerce_customer_get_shipping_address_1	Fully supported ✅
woocommerce_customer_get_shipping_address_2	Fully supported ✅
woocommerce_cart_display_prices_including_tax	Fully supported ✅
woocommerce_cart_get_subtotal	Fully supported ✅
woocommerce_cart_shipping_packages	Fully supported ✅
woocommerce_product_get_shipping_class_id	Fully supported ✅
woocommerce_countries_shipping_countries	Fully supported ✅
woocommerce_get_zone_criteria	Fully supported ✅
woocommerce_shipping_zone_shipping_methods	Fully supported ✅
woocommerce_shipping_free_shipping_is_available	Unknown ❓
woocommerce_product_get_name	Fully supported ✅
woocommerce_shipping_method_add_rate	Fully supported ✅
woocommerce_shipping_flat_rate_is_available	Fully supported ✅
woocommerce_evaluate_shipping_cost_args	Fully supported ✅
woocommerce_calc_shipping_tax	Fully supported ✅
woocommerce_localisation_address_formats	Fully supported ✅
woocommerce_countries_base_country	Unknown ❓
woocommerce_formatted_address_force_country_display	Unknown ❓
woocommerce_states	Fully supported ✅
woocommerce_formatted_address_replacements	Unknown ❓
woocommerce_package_rates	Fully supported ✅
woocommerce_shipping_packages	Fully supported ✅
woocommerce_shipping_rate_method_id	Fully supported ✅
woocommerce_shipping_rate_taxes	Fully supported ✅
woocommerce_shipping_rate_cost	Fully supported ✅
woocommerce_cart_totals_get_fees_from_cart_taxes	Fully supported ✅
woocommerce_calculated_total	Not supported ❌	This does not seem to have any effect
woocommerce_cart_get_discount_total	Fully supported ✅
woocommerce_cart_get_cart_contents_total	Fully supported ✅
woocommerce_get_price_excluding_tax	Not supported ❌	This does not seem to have any effect
raw_woocommerce_price	Not supported ❌	This does not seem to have any effect
formatted_woocommerce_price	Not supported ❌	This does not seem to have any effect
woocommerce_price_trim_zeros	Not supported ❌	This does not seem to have any effect
woocommerce_get_cart_page_permalink	Not supported ❌	This does not seem to have any effect
woocommerce_get_cart_url	Not supported ❌	This does not seem to have any effect
woocommerce_checkout_registration_enabled	Fully supported ✅	This does not seem to have any effect
woocommerce_get_checkout_page_permalink	Not supported ❌	This does not seem to have any effect
woocommerce_get_checkout_url	Not supported ❌	This does not seem to have any effect
woocommerce_checkout_get_value	Not supported ❌	This does not seem to have any effect
woocommerce_default_address_fields	Not supported ❌	This does not seem to have any effect
default_checkout_billing_country	Not supported ❌	This does not seem to have any effect
default_checkout_shipping_country	Not supported ❌	This does not seem to have any effect
woocommerce_get_country_locale	Fully supported ✅
woocommerce_get_country_locale_default	Unknown ❓
woocommerce_get_country_locale_base	Unknown ❓
woocommerce_billing_fields	Partially supported 🔶	Editing core fields is not supported, but adding them is via Additional Checkout Fields API
woocommerce_shipping_fields	Partially supported 🔶	Editing core fields is not supported, but adding them is via Additional Checkout Fields API
woocommerce_checkout_fields	Partially supported 🔶	Editing core fields is not supported, but adding them is via Additional Checkout Fields API
woocommerce_cart_item_product	Not supported ❌	Modifying individual cart items is not possible
woocommerce_payment_gateway_supports	Fully supported ✅
woocommerce_customer_get_billing_first_name	Fully supported ✅
woocommerce_customer_get_billing_last_name	Fully supported ✅
woocommerce_customer_get_billing_company	Fully supported ✅
woocommerce_customer_get_billing_address_1	Fully supported ✅
woocommerce_customer_get_billing_address_2	Fully supported ✅
woocommerce_customer_get_billing_city	Fully supported ✅
woocommerce_customer_get_billing_postcode	Fully supported ✅
woocommerce_customer_get_billing_phone	Fully supported ✅
woocommerce_customer_get_shipping_first_name	Fully supported ✅
woocommerce_customer_get_shipping_last_name	Fully supported ✅
woocommerce_customer_get_shipping_company	Fully supported ✅
woocommerce_get_item_data	Partially supported 🔶	Checkout blocks strip most HTML from metadata, allowing only a, b, em, i, strong, br, abbr, and span.
woocommerce_cart_get_subtotal_tax	Not supported ❌	This does not seem to have any effect
woocommerce_shipping_package_name	Fully supported ✅
woocommerce_shipping_rate_id	Unknown ❓
woocommerce_shipping_rate_label	Fully supported ✅
woocommerce_cart_get_shipping_taxes	Fully supported ✅
woocommerce_cart_get_fee_taxes	Fully supported ✅
woocommerce_cart_get_taxes	Fully supported ✅
woocommerce_rate_code	Unknown ❓
woocommerce_rate_compound	Unknown ❓
woocommerce_rate_label	Fully supported ✅
woocommerce_cart_hide_zero_taxes	Unknown ❓
woocommerce_cart_tax_totals	Fully supported ✅
woocommerce_cart_needs_payment	Fully supported ✅
woocommerce_order_class	Fully supported ✅
woocommerce_checkout_registration_required	Unknown ❓
woocommerce_privacy_policy_page_id	Fully supported ✅
woocommerce_get_terms_page_id	Unknown ❓
woocommerce_terms_and_conditions_page_id	Unknown ❓
woocommerce_cart_contents_count	Unknown ❓
woocommerce_country_locale_field_selectors	Not supported ❌
woocommerce_get_return_url	Fully supported ✅
woocommerce_cart_hash	Fully supported ✅
woocommerce_cart_get_fee_tax	Fully supported ✅
woocommerce_customer_default_location_array	Fully supported ✅
woocommerce_countries	Fully supported ✅
woocommerce_sort_countries	Not supported ❌	This does not seem to have any effect
woocommerce_countries_allowed_countries	Fully supported ✅
woocommerce_customer_default_location_array	Fully supported ✅
woocommerce_customer_get_billing_country	Fully supported ✅
woocommerce_customer_get_shipping_country	Fully supported ✅
woocommerce_customer_get_billing_state	Fully supported ✅
woocommerce_customer_get_shipping_state	Fully supported ✅
woocommerce_customer_get_billing_email	Fully supported ✅
woocommerce_cart_session_initialize	Fully supported ✅
woocommerce_get_checkout_page_id	Fully supported ✅
woocommerce_get_cart_page_id	Fully supported ✅
woocommerce_is_checkout	Fully supported ✅
woocommerce_currency	Fully supported ✅
woocommerce_currency_symbols	Fully supported ✅
woocommerce_currency_symbol	Fully supported ✅
woocommerce_price_format	Fully supported ✅
woocommerce_coupons_enabled	Fully supported ✅
woocommerce_get_shop_page_id	Fully supported ✅
current_theme_supports-woocommerce	Fully supported ✅
woocommerce_payment_gateways	Partially supported 🔶	Integration with WC Blocks is still required, beyond unsetting gateways, manipulating the payment gateways here may not work in the Cart and Checkout blocks
woocommerce_get_base_location	Fully supported ✅
woocommerce_gateway_icon	Not supported ❌	This hook has no effect since icons are not displayed.
woocommerce_get_image_size_thumbnail	Fully supported ✅
woocommerce_get_image_size_single	Fully supported ✅
woocommerce_product_stock_status_options	Fully supported ✅
woocommerce_cart_item_name	Not supported ❌	Use the itemName checkout filter.
woocommerce_product_get_status	Fully supported ✅
woocommerce_product_get_price	Fully supported ✅
woocommerce_is_purchasable	Fully supported ✅
woocommerce_cart_item_is_purchasable	Fully supported ✅
woocommerce_cart_item_data_to_validate	Fully supported ✅
woocommerce_get_cart_item_from_session	Fully supported ✅
woocommerce_cart_contents_changed	Fully supported ✅
woocommerce_get_cart_contents	Fully supported ✅
woocommerce_stock_amount	Fully supported ✅
woocommerce_cart_item_remove_link	Not supported ❌	Use the showRemoveItemLink checkout filter.
woocommerce_cart_item_quantity	Not supported ❌	This is possible by modifying the quantity_limits property of the cart item in the woocommerce_store_api_product_quantity_{$value_type} filter.
woocommerce_product_get_image	Not supported ❌	Use woocommerce_store_api_cart_item_images (PR Link with example.)
woocommerce_cart_no_shipping_available_html	Not supported ❌	This is not editable
woocommerce_available_payment_gateways	Partially supported 🔶	Integration with WC Blocks is still required, beyond unsetting gateways, manipulating the payment gateways here may not work in the Cart and Checkout blocks
woocommerce_cart_get_total	Fully supported ✅
woocommerce_cart_get_fee_tax	Fully supported ✅
woocommerce_cart_get_cart_contents_tax	Fully supported ✅
woocommerce_cart_get_shipping_tax	Fully supported ✅
woocommerce_cart_get_shipping_total	Fully supported ✅

Cart actions

Old hook	Works in blocks?	Notes
woocommerce_before_cart	Not supported ❌	No specific equivalent and no Slot/fill for this area. Maybe adding an inner block to the "Cart items" block could work, but it would have to be positioned manually by the merchant. It is also possible to use the render_block_{$name} filter to render before and after blocks using PHP.
woocommerce_before_cart_table	Not supported ❌	No specific equivalent and no Slot/fill for this area. Maybe adding an inner block to the "Cart items" block could work, but it would have to be positioned manually by the merchant.
woocommerce_before_cart_contents	Not supported ❌	No specific equivalent and no Slot/fill for this area. Maybe adding an inner block to the "Cart items" block could work, but it would have to be positioned manually by the merchant.
woocommerce_after_cart_item_name	Not supported ❌	Use the itemName checkout filter.
woocommerce_before_quantity_input_field	Not supported ❌	No equivalent now.
woocommerce_after_quantity_input_field	Not supported ❌	No equivalent now.
woocommerce_cart_contents	Not supported ❌	No specific equivalent and no Slot/fill for this area. Maybe adding an inner block to the "Cart items" block could work, but it would have to be positioned manually by the merchant.
woocommerce_cart_coupon	Not supported ❌	ExperimentalDiscountsMeta slot/fill
woocommerce_cart_actions	Not supported ❌	ExperimentalOrderMeta slot/fill
woocommerce_after_cart_contents	Not supported ❌	No specific equivalent and no Slot/fill for this area. Maybe adding an inner block to the "Cart items" block could work, but it would have to be positioned manually by the merchant.
woocommerce_after_cart_table	Not supported ❌	No specific equivalent and no Slot/fill for this area. Maybe adding an inner block to the "Cart items" block could work, but it would have to be positioned manually by the merchant.
woocommerce_before_cart_collaterals	Not supported ❌	No specific equivalent and no Slot/fill for this area. Maybe adding an inner block to the "Cart items" block could work, but it would have to be positioned manually by the merchant.
woocommerce_cart_collaterals	Not supported ❌	No specific equivalent and no Slot/fill for this area. Maybe adding an inner block to the "Cart items" block could work, but it would have to be positioned manually by the merchant.
woocommerce_before_cart_totals	Not supported ❌	ExperimentalOrderMeta slot/fill
woocommerce_cart_totals_before_shipping	Not supported ❌	ExperimentalOrderShippingPackages
woocommerce_after_shipping_rate	Not supported ❌	ExperimentalOrderShippingPackages
woocommerce_before_shipping_calculator	Not supported ❌	No specific equivalent. Closest thing is ExperimentalOrderShippingPackages
woocommerce_after_shipping_calculator	Not supported ❌	No specific equivalent. Closest thing is ExperimentalOrderShippingPackages
woocommerce_cart_totals_after_shipping	Not supported ❌	No specific equivalent. Closest thing is ExperimentalOrderShippingPackages
woocommerce_cart_totals_before_order_total	Not supported ❌	No specific equivalent but we do have the totals footer item filters
woocommerce_cart_totals_after_order_total	Not supported ❌	No specific equivalent but we do have the totals footer item filters
woocommerce_proceed_to_checkout	Not supported ❌	No specific equivalent but the Checkout and Place Order button filters may work
woocommerce_after_cart_totals	Not supported ❌	ExperimentalOrderMeta slot/fill
woocommerce_after_cart	Not supported ❌	No specific equivalent and no Slot/fill for this area. Maybe adding an inner block to the "Cart items" block could work, but it would have to be positioned manually by the merchant.

Cart filters

Old hook	Works in blocks?	Notes
woocommerce_cart_item_product_id	Not supported ❌	This does not seem to have any effect
woocommerce_cart_item_visible	Not supported ❌	This does not seem to have any effect
woocommerce_get_remove_url	Not supported ❌	The removal of items is handled async in the Cart block.
woocommerce_cart_item_remove_link	Not supported ❌	The removal of items is handled async in the Cart block.
woocommerce_cart_item_thumbnail	Not supported ❌	Changing the thumbnail this way is not supported. See woocommerce_store_api_cart_item_images (PR Link with example.)
woocommerce_cart_product_price	Not supported ❌
woocommerce_cart_item_price	Not supported ❌
woocommerce_quantity_input_classes	Not supported ❌
woocommerce_quantity_input_max	Not supported ❌	This is possible by modifying the quantity_limits property of the cart item in the woocommerce_store_api_product_quantity_{$value_type} filter.
woocommerce_quantity_input_min	Not supported ❌	This is possible by modifying the quantity_limits property of the cart item in the woocommerce_store_api_product_quantity_{$value_type} filter.
woocommerce_quantity_input_step	Not supported ❌	This is possible by modifying the quantity_limits property of the cart item in the woocommerce_store_api_product_quantity_{$value_type} filter.
woocommerce_quantity_input_pattern	Not supported ❌	This is possible by modifying the quantity_limits property of the cart item in the woocommerce_store_api_product_quantity_{$value_type} filter.
woocommerce_quantity_input_inputmode	Not supported ❌	This is possible by modifying the quantity_limits property of the cart item in the woocommerce_store_api_product_quantity_{$value_type} filter.
woocommerce_quantity_input_placeholder	Not supported ❌	This is possible by modifying the quantity_limits property of the cart item in the woocommerce_store_api_product_quantity_{$value_type} filter.
woocommerce_quantity_input_autocomplete	Not supported ❌	This is possible by modifying the quantity_limits property of the cart item in the woocommerce_store_api_product_quantity_{$value_type} filter.
woocommerce_quantity_input_args	Not supported ❌	This is possible by modifying the quantity_limits property of the cart item in the woocommerce_store_api_product_quantity_{$value_type} filter.
woocommerce_quantity_input_type	Not supported ❌	This is possible by modifying the quantity_limits property of the cart item in the woocommerce_store_api_product_quantity_{$value_type} filter.
woocommerce_cart_item_quantity	Not supported ❌	This is possible by modifying the quantity_limits property of the cart item in the woocommerce_store_api_product_quantity_{$value_type} filter.
woocommerce_cart_product_subtotal	Not supported ❌
woocommerce_cart_item_subtotal	Not supported ❌
woocommerce_cross_sells_columns	Not supported ❌	The cross sells are rendered as an inner block.
woocommerce_cross_sells_orderby	Not supported ❌	The cross sells are rendered as an inner block.
woocommerce_cross_sells_order	Not supported ❌	The cross sells are rendered as an inner block.
woocommerce_cross_sells_total	Not supported ❌	The cross sells are rendered as an inner block.
woocommerce_product_cross_sells_products_heading	Not supported ❌	This can be modified in the editor.
woocommerce_is_downloadable	Not supported ❌	Does not seem to have any effect in Cart/Checkout blocks.
woocommerce_loop_product_link	Not supported ❌	Changing the product links is not supported in the Cart block.
woocommerce_product_loop_title_classes	Not supported ❌	Changing classes to product titles is not supported in the Cart block.
woocommerce_product_add_to_cart_aria_describedby	Not supported ❌	Changing aria-describedby on products is not supported in the Cart block.
woocommerce_sale_flash	Not supported ❌	This can be modified with the saleBadgePriceFormat checkout filter.
woocommerce_cart_subtotal	Not supported ❌	Modifying the cart subtotal display is not supported in the Cart/Checkout blocks
oocommerce_shipping_package_details_array	Not supported ❌	This hook is not fired during Cart block rendering
woocommerce_shipping_show_shipping_calculator	Not supported ❌	This is only used when rendering cart templates, which does not happen in the blocks.
woocommerce_cart_shipping_method_full_label	Not supported ❌	This hook has no effect in the Cart/Checkout blocks.
woocommerce_get_shipping_tax	Not supported ❌	This filter is not used in the Cart/Checkout blocks.
woocommerce_shipping_calculator_enable_country	Not supported ❌	This filter is not used in the Cart/Checkout blocks.
woocommerce_shipping_calculator_enable_state	Not supported ❌	This filter is not used in the Cart/Checkout blocks.
woocommerce_shipping_calculator_enable_city	Not supported ❌	This filter is not used in the Cart/Checkout blocks.
woocommerce_shipping_calculator_enable_postcode	Not supported ❌	This filter is not used in the Cart/Checkout blocks.
woocommerce_cart_totals_fee_html	Not supported ❌	Modifying the fees display is not supported in the Cart/Checkout blocks
woocommerce_countries_estimated_for_prefix	Not supported ❌
woocommerce_cart_total	Not supported ❌	Modifying the cart total using this hook is not supported in the Cart/Checkout blocks
woocommerce_cart_totals_order_total_html	Not supported ❌	Modifying the cart total using this hook is not supported in the Cart/Checkout blocks

Checkout actions

Old hook	Works in blocks?	Notes
woocommerce_before_checkout_form_cart_notices	Not supported ❌	No specific equivalent and no Slot/fill for this area. Maybe adding an inner block to the "Checkout Fields" block could work, but it would have to be positioned manually by the merchant.
woocommerce_before_checkout_form	Not supported ❌	No specific equivalent and no Slot/fill for this area. Maybe adding an inner block to the "Checkout Fields" block could work, but it would have to be positioned manually by the merchant.
woocommerce_checkout_before_customer_details	Not supported ❌	No specific equivalent and no Slot/fill for this area. Maybe adding an inner block to the "Checkout Fields" block could work, but it would have to be positioned manually by the merchant.
woocommerce_checkout_billing	Not supported ❌	No specific equivalent and no Slot/fill for this area. Maybe adding an inner block to the "Checkout Fields" block could work, but it would have to be positioned manually by the merchant.
woocommerce_before_checkout_billing_form	Not supported ❌	No specific equivalent and no Slot/fill for this area. Maybe adding an inner block to the "Checkout Fields" block could work, but it would have to be positioned manually by the merchant.
woocommerce_after_checkout_billing_form	Not supported ❌	No specific equivalent and no Slot/fill for this area. Maybe adding an inner block to the "Checkout Fields" block could work, but it would have to be positioned manually by the merchant.
woocommerce_checkout_shipping	Not supported ❌	Not directly equivalent due to positioning, but ExperimentalOrderShippingPackages could work - so could adding an inner block to the shipping block
woocommerce_before_checkout_shipping_form	Not supported ❌	Not directly equivalent due to positioning, but ExperimentalOrderShippingPackages could work - so could adding an inner block to the shipping block
woocommerce_after_checkout_shipping_form	Not supported ❌	Not directly equivalent due to positioning, but ExperimentalOrderShippingPackages could work - so could adding an inner block to the shipping block
woocommerce_before_order_notes	Not supported ❌	No specific equivalent and no Slot/fill for this area. Maybe adding an inner block to the "Checkout Fields" block could work, but it would have to be positioned manually by the merchant.
woocommerce_after_order_notes	Not supported ❌	No specific equivalent and no Slot/fill for this area. Maybe adding an inner block to the "Checkout Fields" block could work, but it would have to be positioned manually by the merchant.
woocommerce_checkout_after_customer_details	Not supported ❌	No specific equivalent and no Slot/fill for this area. Maybe adding an inner block to the "Checkout Fields" block could work, but it would have to be positioned manually by the merchant.
woocommerce_checkout_before_order_review_heading	Not supported ❌	No specific equivalent and no Slot/fill for this area. Maybe adding an inner block to the "Checkout Order Summary" block could work, but it would have to be positioned manually by the merchant.
woocommerce_checkout_before_order_review	Not supported ❌	No specific equivalent and no Slot/fill for this area. Maybe adding an inner block to the "Checkout Order Summary" block could work, but it would have to be positioned manually by the merchant.
woocommerce_checkout_order_review	Not supported ❌	No specific equivalent and no Slot/fill for this area. Maybe adding an inner block to the "Checkout Order Summary" block could work, but it would have to be positioned manually by the merchant.
woocommerce_review_order_before_cart_contents	Not supported ❌	No specific equivalent and no Slot/fill for this area. Maybe adding an inner block to the "Checkout Order Summary" block could work, but it would have to be positioned manually by the merchant.
woocommerce_review_order_after_cart_contents	Not supported ❌	No specific equivalent and no Slot/fill for this area. Maybe adding an inner block to the "Checkout Order Summary" block could work, but it would have to be positioned manually by the merchant.
woocommerce_review_order_before_shipping	Not supported ❌	No specific equivalent and no Slot/fill for this area. Maybe adding an inner block to the "Checkout Order Summary" block could work, but it would have to be positioned manually by the merchant.
woocommerce_after_shipping_rate	Not supported ❌	No specific equivalent and no Slot/fill for this area. Maybe adding an inner block to the "Checkout Order Summary" block could work, but it would have to be positioned manually by the merchant.
woocommerce_review_order_after_shipping	Not supported ❌	No specific equivalent and no Slot/fill for this area. Maybe adding an inner block to the "Checkout Order Summary" block could work, but it would have to be positioned manually by the merchant.
woocommerce_review_order_before_order_total	Not supported ❌	No specific equivalent and no Slot/fill for this area. Maybe adding an inner block to the "Checkout Order Summary" block could work, but it would have to be positioned manually by the merchant.
woocommerce_review_order_after_order_total	Not supported ❌	No specific equivalent and no Slot/fill for this area. Maybe adding an inner block to the "Checkout Order Summary" block could work, but it would have to be positioned manually by the merchant.
woocommerce_review_order_before_payment	Not supported ❌	No specific equivalent and no Slot/fill for this area. Maybe adding an inner block to the "Checkout Fields" block or Payment block could work, but it would have to be positioned manually by the merchant.
woocommerce_checkout_before_terms_and_conditions	Not supported ❌	No specific equivalent and no Slot/fill for this area. Maybe adding an inner block to the "Checkout Fields" block could work, but it would have to be positioned manually by the merchant.
woocommerce_checkout_terms_and_conditions	Not supported ❌	No specific equivalent and no Slot/fill for this area. Maybe adding an inner block to the "Checkout Fields" block could work, but it would have to be positioned manually by the merchant.
woocommerce_checkout_after_terms_and_conditions	Not supported ❌	No specific equivalent and no Slot/fill for this area. Maybe adding an inner block to the "Checkout Fields" block could work, but it would have to be positioned manually by the merchant.
woocommerce_review_order_before_submit	Not supported ❌	No specific equivalent and no Slot/fill for this area. Maybe adding an inner block to the "Checkout Fields" block could work, but it would have to be positioned manually by the merchant.
woocommerce_review_order_after_submit	Not supported ❌	No specific equivalent and no Slot/fill for this area. Maybe adding an inner block to the "Checkout Fields" block could work, but it would have to be positioned manually by the merchant.
woocommerce_review_order_after_payment	Not supported ❌	No specific equivalent and no Slot/fill for this area. Maybe adding an inner block to the "Checkout Fields" block or Payment block could work, but it would have to be positioned manually by the merchant.
woocommerce_checkout_after_order_review	Not supported ❌	No specific equivalent and no Slot/fill for this area. Maybe adding an inner block to the "Checkout Order Summary" block could work, but it would have to be positioned manually by the merchant.
woocommerce_after_checkout_form	Not supported ❌	No specific equivalent and no Slot/fill for this area. Maybe adding an inner block to the "Checkout Fields" block could work, but it would have to be positioned manually by the merchant.
woocommerce_checkout_update_order_review	Not supported ❌	These type of AJAX events do not occur when using the Cart/Checkout blocks

Checkout filters

Old hook	Works in blocks?	Notes
woocommerce_add_notice	Partially supported 🔶	These notices are only added on page load of the Cart/Checkout blocks. Any that happen during API requests are stored and output on the next full page load.
woocommerce_checkout_coupon_message	Not supported ❌	The coupon message cannot be customised using this filter.
woocommerce_form_field_args	Not supported ❌	Modifying core form fields is not supported yet in the Cart/Checkout blocks.
woocommerce_form_field_text	Not supported ❌	Modifying core form fields is not supported yet in the Cart/Checkout blocks.
woocommerce_form_field	Not supported ❌	Modifying core form fields is not supported yet in the Cart/Checkout blocks.
woocommerce_form_field_country	Not supported ❌	Modifying core form fields is not supported yet in the Cart/Checkout blocks.
woocommerce_form_field_state	Not supported ❌	Modifying core form fields is not supported yet in the Cart/Checkout blocks.
woocommerce_form_field_tel	Not supported ❌	Modifying core form fields is not supported yet in the Cart/Checkout blocks.
woocommerce_form_field_email	Not supported ❌	Modifying core form fields is not supported yet in the Cart/Checkout blocks.
woocommerce_cart_needs_shipping_address	Not supported ❌	The wc/store/cart data store should be used to control this.
woocommerce_ship_to_different_address_checked	Not supported ❌	The wc/store/checkout data store should be used to check if this checkbox is checked.
woocommerce_enable_order_notes_field	Not supported ❌	This block must be removed in the editor, this filter will not affect its presence in the Checkout block
woocommerce_form_field_textarea	Not supported ❌	Modifying core form fields is not supported yet in the Cart/Checkout blocks.
woocommerce_checkout_cart_item_visible	Not supported ❌	It is not possible to filter cart items from the order summary in the Cart/Checkout blocks.
woocommerce_cart_item_class	Not supported ❌	It is not possible to add classes to specific cart items in the order summary in the Cart/Checkout blocks.
woocommerce_checkout_cart_item_quantity	Not supported ❌	It is not possible to modify the quantity display of cart items in the order summary in the Cart/Checkout blocks.
woocommerce_cart_product_subtotal	Not supported ❌	Modifying the product subtotal display is not supported in the Cart/Checkout blocks
woocommerce_cart_item_subtotal	Not supported ❌	Modifying the product subtotal display is not supported in the Cart/Checkout blocks
woocommerce_cart_subtotal	Not supported ❌	Modifying the cart subtotal display is not supported in the Cart/Checkout blocks
woocommerce_cart_shipping_method_full_label	Not supported ❌	Modifying the shipping method display is not supported in the Cart/Checkout blocks
woocommerce_get_shipping_tax	Not supported ❌	This filter is not used in the Cart/Checkout blocks.
woocommerce_cart_totals_fee_html	Not supported ❌	Modifying the fees display is not supported in the Cart/Checkout blocks
woocommerce_cart_total	Not supported ❌	Modifying the cart total using this hook is not supported in the Cart/Checkout blocks
woocommerce_cart_totals_order_total_html	Not supported ❌	Modifying the order total html using this hook is not supported in the Cart/Checkout blocks - edit it using the editor.
woocommerce_order_button_text	Not supported ❌	Modifying the order button html using this hook is not supported in the Cart/Checkout blocks - edit it using the editor.
woocommerce_gateway_title	Not supported ❌	These can be included in the "Content" rendered by gateways registered with the Cart/Checkout block but it is not possible to control this via PHP filters.
woocommerce_gateway_icon	Not supported ❌	Gateway icons are not shown. They can be included in the "Content" rendered by gateways registered with the Cart/Checkout block but it is not possible to control this via PHP filters.
woocommerce_gateway_description	Not supported ❌	Changing gateways this way is not possible, gateways need to register with the Cart/Checkout blocks using JavaScript and third party extensions can't modify these front-end details.
woocommerce_checkout_show_terms	Not supported ❌	This is not controllable via this filter. The block can be removed in the editor.
woocommerce_get_privacy_policy_text	Not supported ❌	Modifying the privacy policy text using this filter is not supported. It can be modified in the editor.
woocommerce_order_button_html	Not supported ❌	Modifying the order button html using this hook is not supported in the Cart/Checkout blocks - edit it using the editor.
woocommerce_update_order_review_fragments	Not supported ❌	Fragments are not used on the Cart/Checkout blocks.

Place order actions

This section is a work in progress.

Place order filters

This section is a work in progress.

Order summary actions

This section is a work in progress.

Order summary filters

This section is a work in progress.

Common extensibility paths

Cart and Checkout blocks

Fully supported with no modification needed

• Modifying fees and other prices on the cart (woocommerce_cart_calculate_fees)
• Updating customer information during the WC lifecycle events, e.g. on woocommerce_init, updating a customer's address would reflect in the Cart/Checkout blocks.
• Adding Shipping methods
• Changing product names using woocommerce_product_get_name

Partially supported or supported by alternative approach

• Modifying the layout, e.g. inserting content before/after specific sections such as shipping, payment, and the billing/shipping addresses. Examples include: Outputting content in various places, e.g. before the cart contents are printed (woocommerce_cart_contents) and before the shipping rates (woocommerce_before_shipping_rate):
  • This is supported by our use of Slot/Fill and by registering inner blocks as children of the block you want to show them after.
• Adding payment methods
  • Simply adding the payment method is not enough, developers need to register a React component to show in the payments block as well.
• Adding shipping methods for local pickup
  • Should work as normal, but does require the method to support collectable
• Modify the names of items in the cart
  • Requires the developer to use a JS filter rather than PHP filter

Not supported at all

• Modifying individual cart line items to add or change content/change HTML (outside of what is offered by our checkout filters).

Checkout block

Fully supported with no modification needed

• Pre-filling values on the form (Some merchants achieve this by overriding their values using woocommerce_checkout_get_value)
  • This is supported insofar as we respect what has been set on the cart/customer object when loading the cart. woocommerce_checkout_get_value is not supported in the Checkout block, but this is this hooks only use-case.

Partially supported or supported by alternative approach

• Adding new Checkout fields (commonly achieved with the woocommerce_checkout_fields hook)
  • Supported by the Additional Checkout Fields API, not all field types are supported right now
• Custom field validation using hooks such as woocommerce_checkout_process
  • Supported by hooking into the payment processing events - validation at the point of pressing "Place order" this is only be possible for payment methods. Other extensions could add validation errors to the data store prior to the button being pressed, and this would prevent checkout, but it is not a good solution, especially if the validation checks are expensive.
• Updating orders/customers with hooks before/during/after order placement
  • We have some hooks that fire during checkout:
    • woocommerce_store_api_checkout_order_processed - fired when the order has been placed
    • woocommerce_store_api_checkout_update_customer_from_request - fired when the customer is being updated with data from the checkout request
    • woocommerce_store_api_checkout_update_order_meta - fired when order meta data is being updated with data from the request
  • Any other WC hooks that fire in the Shortcode process (e.g. woocommerce_checkout_order_processed will not fire on Store API requests from the blocks)
• Customising the place order button text using woocommerce_order_button_text
  • Not supported with hooks but it is possible in the editor. There is no programmatic way to achieve this right now.

Not supported at all

• Changing existing core fields (commonly achieved with the woocommerce_checkout_fields hook)
• Removing billing/shipping addresses (using the above method)
• Performanign actions just before the order is finalised (woocommerce_checkout_create_order)

Cart block

Fully supported with no modification needed

• None that aren't already covered by "both blocks" section.

Partially supported or supported by alternative approach

• Limiting quantity selections on cart items, e.g. minimum, maximum or step values. Previously this would be done using filters such as woocommerce_quantity_input_step
  • This is possible by modifying the quantity_limits property of the cart item in the woocommerce_store_api_product_quantity_{$value_type} filter.

Not supported at all

• Modifying the layout by altering template files (unless using a block theme and a custom template)