Registering settings UI components

Use custom components when a WooCommerce settings field needs plugin-specific React UI that cannot be represented by a native field type.

For most fields, prefer the native renderer. Custom components are best for specialized selectors, previews, or validation flows.

PHP field metadata

Declare a stable component name on the field:

array(
	'id'        => 'my_plugin_payment_methods',
	'title'     => __( 'Payment methods', 'my-plugin' ),
	'type'      => 'multiselect',
	'component' => 'my-plugin/payment-method-picker',
	'options'   => array(
		'card' => __( 'Card', 'my-plugin' ),
		'bnpl' => __( 'Buy now, pay later', 'my-plugin' ),
	),
)

The component value is a name, not a script handle. It lets the PHP schema say which renderer a field intends to use while JavaScript supplies the implementation.

Register JavaScript components

Register components with registerSettingsExtension() from @woocommerce/settings-ui-sdk:

import { registerSettingsExtension } from '@woocommerce/settings-ui-sdk';
import { PaymentMethodPicker } from './payment-method-picker';

registerSettingsExtension( {
	scope: {
		page: 'my_plugin',
		section: 'payments',
	},
	components: {
		'my-plugin/payment-method-picker': PaymentMethodPicker,
	},
} );

Registrations are scoped by settings page and, optionally, by section. This prevents one plugin from accidentally replacing another plugin's field behavior.

Component props

Custom components receive stable field props:

type SettingsFieldComponentProps = {
	field: {
		id: string;
		label: string;
		type: string;
		description?: string;
		value?: string | number | boolean | string[] | null;
		options?: Array< { label: string; value: string } >;
		component?: string;
		placeholder?: string;
		disabled?: boolean;
		customAttributes?: Record< string, string | number | boolean >;
	};
	value: string | number | boolean | string[] | null;
	onChange: ( value: string | number | boolean | string[] | null ) => void;
	context: {
		page: string;
		section?: string;
	};
};

Call onChange() with the next field value. The SDK handles hidden input serialization for the field's save adapter.

Example component

import type { SettingsFieldComponentProps } from '@woocommerce/settings-ui-sdk';

export const PaymentMethodPicker = ( {
	field,
	value,
	onChange,
}: SettingsFieldComponentProps ) => {
	const selectedValues = Array.isArray( value ) ? value : [];

	return (
		<fieldset>
			<legend>{ field.label }</legend>
			{ field.options?.map( ( option ) => {
				const checked = selectedValues.includes( option.value );

				return (
					<label key={ option.value }>
						<input
							type="checkbox"
							checked={ checked }
							onChange={ () => {
								onChange(
									checked
										? selectedValues.filter(
												( item ) =>
													item !== option.value
										  )
										: [ ...selectedValues, option.value ]
								);
							} }
						/>
						{ option.label }
					</label>
				);
			} ) }
		</fieldset>
	);
};

Field-specific overrides

If a legacy field cannot add component metadata directly, register a field override by field id:

registerSettingsExtension( {
	scope: {
		page: 'my_plugin',
	},
	fieldOverrides: {
		my_plugin_payment_methods: PaymentMethodPicker,
	},
} );

Field overrides are useful during migration, but component metadata is preferred because the intended renderer stays close to the PHP field schema.

Type renderers

Use typeRenderers when every field of a type should share the same renderer within a page scope:

registerSettingsExtension( {
	scope: {
		page: 'my_plugin',
	},
	typeRenderers: {
		my_plugin_color: ColorField,
	},
} );

Resolution order is:

1. field.component
2. fieldOverrides[ field.id ]
3. typeRenderers[ field.type ]
4. Native SDK field renderer

Enqueue the component script

Register your script in WordPress and return its handle from the settings UI adapter:

<?php
use Automattic\WooCommerce\Admin\Settings\LegacySettingsPageAdapter;

final class My_Plugin_Settings_UI_Page extends LegacySettingsPageAdapter {
	public function get_script_handles( string $section ): array {
		return array( 'my-plugin-settings-ui' );
	}
}

WooCommerce loads the SDK first, then your script, then mounts the settings app.