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

# Campaign Token Definitions

> Define reusable token types that can be assigned values inside individual campaigns.

The **Tokens** tab in Campaign Settings is where you define the tokens available across all campaigns. Tokens defined here act as templates — each campaign can then [assign its own value](/product-docs/campaigns/tokens) to a token.

<Frame caption="[SCREENSHOT — Campaign tokens list in settings]" />

## Creating a token

To create a new token, click **+ New token** and fill in:

| Field     | Description                                                                    |
| --------- | ------------------------------------------------------------------------------ |
| **Label** | A human-readable name for the token (e.g. *Event Date*).                       |
| **Key**   | A unique identifier used to reference the token in assets (e.g. `event_date`). |
| **Type**  | The data type of the token's value.                                            |

<Frame caption="[SCREENSHOT — New token dialog]" />

### Supported token types

| Type              | Description                  |
| ----------------- | ---------------------------- |
| **String**        | Free-form text.              |
| **Number**        | Numeric values.              |
| **Boolean**       | True or false.               |
| **Date**          | A calendar date.             |
| **Date and time** | A date with a specific time. |
| **URL**           | A web address.               |
| **Phone number**  | A phone number.              |

***

## How tokens are used

Once a token is defined here, it becomes available inside every campaign. Team members can then:

1. Navigate to a campaign's **Tokens** tab.
2. Select the token and assign a value specific to that campaign.
3. Reference the token in any asset within the campaign — the value populates automatically.

See [Campaign Tokens](/product-docs/campaigns/tokens) for details on assigning and managing token values within a campaign.