Logs

Last modified: July 7, 2025

Introduction

From the Logs page, you can access the logs produced by your app. What you see depends on the environment to which your app is deployed.

This page describes logs for licensed apps deployed to Mendix Cloud. Logs are not available for Free Apps deployed to Mendix Cloud.

To configure logs if your app is running on a different cloud, go to the cloud management portal for the cloud to which your app is deployed. For more information, see Monitoring Environments in Mendix on Kubernetes or Monitoring Environments in Mendix Apps on SAP BTP.

To access the Logs page, open your app in Apps. Then select Logs in the navigation pane.

Use the drop-down menu in the upper-right corner to select the environment you want to view logs for.

To view logs, you must have Access to Monitoring permission. For more information, see Node Permissions.

Apps Deployed to Mendix Cloud

When your app is deployed to Mendix Cloud, it automatically creates daily app and access logs. On the Logs page, you can view archived logs, view the live log, and view log access activity.

For apps deployed to Mendix Cloud, you can select which environment you want logs for. Viewing production logs requires two-factor authentication.

Logging for apps deployed to Mendix Cloud is limited to 500 loglines per second. Any loglines above this limit are suppressed; they do not appear in the log files or live log. If loglines are suppressed because of this rate limit, the log displays a notification with the number of loglines that were suppressed.

Archived App and Access Logs

For each day, you can download the app log or the access log by clicking the corresponding Download button ( ).

File sizes are displayed for archived logs, but in-progress logs show the label “Unknown” instead. You can download the in-progress app and access logs for the current day; however, these logs will contain incomplete records because the day’s activity is not yet completed.

By default, archived logs are sorted by date; the current log is the first one listed. You can manually click through the archived logs or use the search field to find logs for a specific date.

Rotation and Retention Schedule

For apps deployed to Mendix Cloud, application logs and acccess logs are rotated and archived every day. They are kept for six months. If you want to keep a log for longer than that, you can download the log to your computer.

Live Log

Click View Live Log to access your app’s log in real time. You can use the drop-down menus to adjust the log sources and log levels that appear in the live log.

The live log displays in the local time of the browser. All other logs have timestamps in UTC.

Activity Log

At the bottom of the Logs page, there is an activity log. This section reports data on who has viewed or downloaded the logs. You can see which log was interacted with, by whom, and when. If you are the app’s Technical Contact, you can download the activity log data as a CSV file.

The activity log records access by team members as well as members of Mendix Support, who may view or download your app’s logs in connection with any support tickets you have open.

Free App

Archived logs are not available for Free Apps. The Logs page displays sample data instead of archived data for your app.

You can still interact with the sample data, and you can click View Live Log to access a live log of your deployed Free App.