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

# Custom Subject

> Personalize your email subject line with dynamic placeholders for better engagement.

You can define a custom subject format for all release notification emails.\
Use dynamic variables to automatically include relevant information in each message.

## Supported Variables

**\{title}** `string`

The release title

**\{version}** `string`

The release version (if available)

**\{project}** `string`

The project name (if available)

**\{workspace}** `string`

Your workspace name

## How to enable

**1. Navigate to Settings page**

Go to **Settings → Email** in your workspace.

**2. Enter your subject format**

Enter a subject template using any of the supported variables.\
Example: `[{workspace}] {title} ({version})`

**3. Save**

Click **Save Changes** to apply your new subject format.

### How it works

Each time a release email is sent, Onset replaces the variables with actual values.\
For example:\
`[{workspace}] {title} ({version})` → `[Onset] API Improvements (v2.3.0)`


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