# Write to Log

### Description

The `Write to log` action writes a specific string to the Hop logging system.

This action is similar to the [Write To Log](https://github.com/mbertazz/hop-docs-md/blob/main/modules/ROOT/pages/workflow/actions/pipeline/transforms/writetolog.cOEDlIs7Rj) transform.

Typical use cases are logging variable values and additional, custom logging information to the Hop logging system.

{% hint style="info" %}
Tip: Be careful when writing variables for (unencrypted) passwords or other sensitive information to the Hop logging system!
{% endhint %}

Parameters and variables must be specified in the Log message section.

A Logging level must be set. Set the Log detail level to Basic if you want parameters and variables to be printed out.

Example to print parameter or variable in Log message section: `COUNTER: ${COUNTER}`

{% hint style="info" %}
Tip: If an error stops anything from being written to the log, then disable the Hops that fail, add logging, and re-run.
{% endhint %}

### Options

| Option      | Description                                                                                                                                                                        |
| ----------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Action name | The name of the workflow action.                                                                                                                                                   |
| Log level   | The logging level to use. See [Logging](https://github.com/mbertazz/hop-docs-md/blob/main/modules/ROOT/pages/workflow/actions/logging/logging-basics.cOEDlIs7Rj) for more details. |
| Log subject | The subject to use in the logging line(s)                                                                                                                                          |
| Log message | The log message to write to the log                                                                                                                                                |


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```
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```

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