> ## Documentation Index
> Fetch the complete documentation index at: https://docs.appsignal.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Heroku Logplex Errors

> Learn how to set up Heroku Logplex Errors what the errors mean.

<Note>
  Make sure a working [Heroku Logplex Log Drain](/heroku/setup) is setup before continuing with this section.
</Note>

AppSignal will automatically extract Heroku errors from the Logplex data when a Log Drain is setup, no further action is required.

These errors behave like application errors and will produce incidents and samples. These errors will show up under a dedicated "heroku" namespace on AppSignal.

<img src="https://mintcdn.com/appsignal-715f5a51/4TRZP0Sq9Zq7PAPW/assets/images/screenshots/heroku/heroku-errors-screenshot.png?fit=max&auto=format&n=4TRZP0Sq9Zq7PAPW&q=85&s=74de0a547bef08d944618517d9f08210" alt="Screenshot of AppSignal incident list with a Heroku error" width="2048" height="694" data-path="assets/images/screenshots/heroku/heroku-errors-screenshot.png" />

Because the errors are generated from Log lines, the information available is limited, we only get the Error name/code, metadata such as request\_id, path, method (GET/POST) etc, which will be available in the "Overview" section of the sample. These values are also available to filter samples by.

The error code is determined by Heroku, for a full list of error codes, see the [Heroku errors documentation](https://devcenter.heroku.com/articles/error-codes).

You'll receive notifications for these errors when notifiers are setup. If you do not wish to receive notifications for these errors, it's recommended to setup [Namespace default notification settings](/application/notification-settings).