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

# Data model

> Create custom fields used by contacts, opportunities, tasks, schedules, booking forms, and web chat.

Use **Settings → Data model** to create and manage custom fields. Custom fields power table columns, filters, contact properties, import mapping, appointment questions, and web chat questions.

## Field settings

Each custom field includes:

* **Name**
* **Type**
* **Key** generated from the name
* Type-specific configuration such as options, currency, or referenced object
* Optional description

System fields are marked **System only** and cannot be edited like custom fields.

## Field types

Clearline supports common field types such as text, number, date, email, telephone, currency, select, multi-select, checkbox, and object references.

Select and multi-select fields can define options with labels, values, and colors.

## Archive a field

Archive a custom field when it should no longer be used. Archived fields are hidden from active configuration but retained for historical data.

<Warning>
  Do not archive a field that is still used by imports, booking questions, web chat questions, filters, or active workflows.
</Warning>

<Info>
  Screenshot placeholder: add the data model table and create-field dialog.
</Info>