invoiceninja/app/Policies/ProductPolicy.php

<?php

namespace App\Policies;

use App\Models\User;
use Illuminate\Auth\Access\HandlesAuthorization;

class ProductPolicy extends EntityPolicy
{
    use HandlesAuthorization;

    /**
     * Create a new policy instance.
     *
     * @return void
     */
    public function __construct()
    {
        //
    }

    /**
     *  Checks if the user has create permissions
     *  
     * @param  User $user
     * @return bool
     */
    public function create(User $user) : bool
    {
        return $user->isAdmin() || $user->hasPermission('create_product');
    }

}