Where does Zabbix.log() get saved?

[trividea]

I'm trying to get my Zabbix to trigger Slack messages using the Slack Webhook from github, it works when i use the Test link, but the triggers dont send messages to slack channel. I see in the script it does a try/catch and sends a log entry with the error from slack, but i cant seem to find where that log is located? I checked /var/log/zabbix/zabbix_server.log and it's not in there. Also set debug level to 4 and it's still not logging it there.

catch (error) {
    Zabbix.log(4, '[ Slack Webhook ] Slack notification failed : ' + error);
    throw 'Slack notification failed : ' + error;
}

[cyber]

It should be zabbix_server.log.

https://www.zabbix.com/documentation/7.2/en/manual/config/items/preprocessing/javascript/javascript_objects?hl=Zabbix.log