Catalog price rules - update on schedule

Question

I have updated my web shop to Magento 2.4.2 version and i would like to set my cron job to update every 48h just for Catalog price rules (catalogrule_rule). Does anybody know how to do that?

Answer 1

I am not sure if you want to overwrite the magento default cronjob schedule or you simply need the schedule expression for your own custom cronjob.

However, I will answer both with the code below: I think overwriting a core cronjob's schedule should be doable by creating a custom module and creating the etc/crontab.xml file that will overwrite the original one. The content should be the same, just a different schedule:

<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:module:Magento_Cron:etc/crontab.xsd">
    <group id="default">
        <job name="catalogrule_apply_all" instance="Magento\CatalogRule\Cron\DailyCatalogUpdate" method="execute">
            <schedule>0 1 */2 * *</schedule>
        </job>
    </group>
</config>

The <schedule>0 1 */2 * *</schedule> part will make the cronjob execute At 01:00 on every 2nd day-of-month. so you either use just this bit and adjust your own custom cronjob schedule or overwrite the core one, there you have it :)