Sample configuration of new promotion action

FreeItemPromotionActionCommand.php

<?php

// src/Promotion/Action/FreeItemPromotionActionCommand.php

declare(strict_types=1);

namespace App\Promotion\Action;

use Sylius\Component\Promotion\Action\PromotionActionCommandInterface;
use Sylius\Component\Promotion\Model\PromotionInterface;
use Sylius\Component\Promotion\Model\PromotionSubjectInterface;

final class FreeItemPromotionActionCommand implements PromotionActionCommandInterface
{
    public function execute(PromotionSubjectInterface $subject, array $configuration, PromotionInterface $promotion): bool
    {
        // Promotion logic
    }

    public function revert(PromotionSubjectInterface $subject, array $configuration, PromotionInterface $promotion): void
    {
        // Promotion reverting logic
    }
}

services.yaml

services:
    # other definitions

    App\Promotion\Action\FreeItemPromotionActionCommand:
        tags:
            - { 
                name: sylius.promotion_action, 
                type: free_item, 
                label: 'app.form.promotion_action.free_item', 
                form_type: App\Form\Type\Promotion\Action\FreeItemConfigurationType 
            }