> For the complete documentation index, see [llms.txt](https://docs.adnuntius.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.adnuntius.com/adnuntius-data/api-documentation/fields.md).

# Profile Fields

Adnuntius Data holds a *Visitor Profile* record for each of your users. Each profile provides many fields to store data against.

## Fields

A *partial* list of the available fields is provided in the table below. See the [Data Types](#data-types) section for further details about the field data types.

| Field Name    | Data Type | Description   | Example                                   |
| ------------- | --------- | ------------- | ----------------------------------------- |
| `firstName`   | `Text`    | First Name    | `"John"`                                  |
| `lastName`    | `Text`    | Last Name     | `"Nguyen"`                                |
| `title`       | `Text`    | Title         | `"Mr"`, `"Mrs"`, `"Dr"`, `"Captain"`, etc |
| `dateOfBirth` | `Date`    | Date of Birth | `"1990-05-01"`                            |

You can view the **full** list of available fields within the Adnuntius Data admin UI. This list is also available via the Adnuntius API.

## Data Types

The different fields may be one of the following data types:

| Data Type   | Description                                                                                                                       | Example                           |
| ----------- | --------------------------------------------------------------------------------------------------------------------------------- | --------------------------------- |
| `Text`      | Text surrounded by double quote (`"`) characters                                                                                  | `"This is an example text value"` |
| `Integer`   | A whole number than can range from a minimum value of -9,223,372,036,854,775,808 and a maximum value of 9,223,372,036,854,775,807 | 9999                              |
| `Date`      | A date in YYYY-MM-DD format. Must be surrounded by double quote (`"`) characters.                                                 | "2019-12-31"                      |
| `Timestamp` | A timestamp in YYYY-MM-DD HH:MM:SSZ format. Must be surrounded by double quote (`"`) characters                                   | "2019-10-20 01:59:59Z"            |

## Field Mappings

You can create custom field mappings to provide alternative names for fields.


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