Log Message workflow activity

reference brazil Updated Sep 10, 2026 1 min read r_LogMessageActivity.md

The Log Message activity writes a message to the workflow log.

Use this activity to add entries to the workflow's log for debugging or tracing purposes.

Input variables

Input variables determine the initial behavior of the activity.

Field	Description
Message	The message to log. This variable can be a string or a JavaScript expression that evaluates to a string.

Parent Topic:Utility workflow activities

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---
title: Log Message workflow activity
description: The Log Message activity writes a message to the workflow log.
locale: en-US
canonical_url: https://www.servicenow.com/docs/r/build-workflows/workflow-activities/r\_LogMessageActivity.html
release: brazil
product: Workflow Activities
classification: workflow-activities
topic_type: reference
last_updated: "2026-09-10"
reading_time_minutes: 1
breadcrumb: [Utility workflow activities, Workflow activities reference, Workflow activities, Classic Workflow, Build workflows]
---

# Log Message workflow activity

The **Log Message** activity writes a message to the workflow log.

Use this activity to add entries to the workflow's log for debugging or tracing purposes.

## Input variables

Input variables determine the initial behavior of the activity.

|Field|Description|
|-----|-----------|
|Message|The message to log. This variable can be a string or a JavaScript expression that evaluates to a string.|

**Parent Topic:**[Utility workflow activities](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/brazil/markdown/build-workflows/workflow-activities/c_UtilityActivities.md)