# Configure Categories Question Unit

_Administrator Guide › Configuration › Reference list settings_

![Configure Categories Question Unit](https://atloriaassets.blob.core.windows.net/assets/a438221c-c1af-407c-b9e6-a56c986db846/0854257768c4f85f59d6221c1fe6ee89.png#atloria-annotations=%7B%22annotations%22%3A%5B%7B%22type%22%3A%22box%22%2C%22x%22%3A84.65%2C%22y%22%3A4.86%2C%22w%22%3A7.31%2C%22h%22%3A4.55%2C%22label%22%3A%223%20%20New%22%7D%2C%7B%22type%22%3A%22marker%22%2C%22n%22%3A3%2C%22x%22%3A88.3%2C%22y%22%3A7.13%7D%5D%7D)
*Categories Question Unit — Configurations › Reference List Settings › Categories Question Unit*

![New](https://atloriaassets.blob.core.windows.net/assets/a438221c-c1af-407c-b9e6-a56c986db846/2eaac82431d163c9b35727f85b36e9c4.png)

## Overview

Use **Categories Question Unit** to maintain the reference-list entries used for category-question units. Administrators configure this list when setting up or updating reference data that supports category questions.

## Before you start

You must have access to **Configurations** and the **Reference List Settings** area.

## Steps

1. Navigate to **Configurations > Reference List Settings > Categories Question Unit**.

2. Review the existing Categories Question Unit entries to avoid creating a duplicate reference-list entry.

3. Select **New** to begin adding a Categories Question Unit entry.

4. Complete each required entry presented in the configuration form. The form validates required information before the entry can be completed.

5. If a format validation message is displayed, revise the affected value to use only underscore (`_`), hyphen (`-`), and period (`.`) characters where required.

## Tips & cautions

> **Warning:** Do not leave required entries blank. The form displays the validation message “This Field Is Required” when mandatory information is missing.

> **Note:** One configuration value accepts only underscore (`_`), hyphen (`-`), and period (`.`) characters.

## Troubleshooting

- A required-field validation message is displayed → A mandatory entry has not been completed → Enter a value in each required entry presented on the form.

- A character-format validation message is displayed → The entered value contains unsupported characters → Use only underscore (`_`), hyphen (`-`), and period (`.`) characters in the affected value.

- The Categories Question Unit list is not available → The configuration navigation path has not been selected → Open **Configurations > Reference List Settings > Categories Question Unit**.

## Result

The **Categories Question Unit** reference-list configuration area is available for maintaining category-question unit entries.

## Related pages

- [Configure Categories Qustions](doc:categories-qustions)
- [Configure 2 Factor Authentication](doc:2-factor-authentication-guide)
- **Configuration — Learning Path**
- [Configure Serial Status](doc:serial-status)
- [Configure Account Managers](doc:account-managers)
- [Configure Attachment Categories](doc:attachment-categories)
- [Configure Branches](doc:configuration-company-branchs-edit-record)
- [Configure Flags](doc:flags)
- [Configure Frequent Currencies](doc:frequent-currencies)
- [Configure Market Segments](doc:market-segments)
- [Configure Product Types](doc:product-types)
- [Configure Products](doc:products-guide)
- [Configure Custom Fields](doc:custom-fields-guide)
- [Configure Dashboard settings](doc:configuration-dashboard-settings-edit-record)
- [Configure Dynamic Validation](doc:dynamic-validation-guide)