Automatic group switch of customer after period of time

Question

Hi guys i have a scenario where the customer gets one month free delivery on all orders which i can move him to a customer group with rules.

how to switch the customer back to general customer group automatically after the one month or two month etc.

Answer 1

Easiest way to do this is with a cronjob. You'll need to write your own module and define a cron in there

config.xml

<config>
    <modules>
        <[Namespace]_[Module]>
            <version>1.0.0</version>
        </[Namespace]_[Module]>
    </modules>
    <global>
        <models>
            <[namespace]_[module]>
                <class>[Namespace]_[Module]_Model</class>
            </[namespace]_[module]>                         
        </models>
    </global>
    <crontab>
        <jobs>
            <[namespace]_[module]_switchgroup>
                <schedule><cron_expr>* * */1 * *</cron_expr></schedule>
                <run><model>[namespace]_[module]/cron::setGroup</model></run>
            </[namespace]_[module]_switchgroup>
        </jobs>
    </crontab>
</config>

[Namespace]/[Module]/Model/Cron.php

class [Namespace]_[Module]_Model_Cron
{
    public function setGroup() 
    {
        $collection = Mage::getModel('customer/customer')->getCollection()
            ->addAttributeToFilter('created_at', array('lteq' => date('Y-m-d', strtotime('-1 month'))))
            ->addAttributeToFilter('group_id', [old group id]);

        foreach ($collection as $_customer) {
            $_customer->setGroupId([the updated id]);
            $_customer->save();
        }
    }
}

might need some tweaking here and there but it basically looks for all 1 month old customers with a customer group ID once per day and updates them to the new group