# UserAccount

## Definition

UserAccount identify a user registered on your different systems, like your CRM, a loyalty program or any authentication system. They have the following properties:

| Property          | Type                 | Description                                              |
| ----------------- | -------------------- | -------------------------------------------------------- |
| user\_account\_id | String               | Usually the same as the ID as the source, like your CRM. |
| compartment\_id   | String               | Compartment associated with the user account             |
| creation\_ts      | Timestamp            | Account's creation timestamp                             |
| expiration\_ts    | Timestamp (optional) | Account's eventual expiration timestamp                  |

Always use the `user_account_id` in correlation with a `compartment_id` to identify a user by its account. If you don't specify a `compartment_id`, then the default compartment will be used.

A **Compartment** is a group that organizes specific user account identifiers. Each compartment has a unique ID that is used to identify the corresponding user account identifier. For instance, “UTIQ Martechpass” might have the compartment id 20.

There are two categories of **Compartments**:

* The **First-party user account compartments** which compartments contain user account identifiers created within your organization, such as CRM identifiers.
* **Shared user account compartments** which include user account identifiers shared from another organisation.

For instance, if you wish to add **UTIQ** to your datamart, first subscribe to it within your community organisation. It will then be automatically shared with your other organisations, but you’ll still need to activate it within your datamart.