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

# Tag Overview

> Tags and taggings are two resources in the MX Platform API that, when used together, give end users more control over organizing their transactions.

A tag is a custom label that can be applied to a transaction.

After you create a tag, use it for tagging. This means you should actually apply the tag to a particular transaction.

Together, they're a powerful tool for personalization, customization, and money management.

For a guide on creating a tag and then applying it to a specific transaction with a tagging, see [Custom Tags and Taggings](/products/experience/pfm/integration-guides/personalization/).

## Tag Fields

| Field       | Data Type | Description                                    |
| :---------- | :-------- | :--------------------------------------------- |
| `guid`      | String    | Unique identifier for the tag. Defined by MX.  |
| `name`      | String    | The name of the tag. Created by the user.      |
| `user_guid` | String    | Unique identifier for the user. Defined by MX. |