---
title: "Making VAT Numbers a Required Field"
slug: "making-vat-numbers-a-required-field"
updated: 2025-05-08T12:57:42Z
published: 2025-05-08T12:57:42Z
---

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

# Making VAT Numbers a Required Field

This validation rules makes VAT numbers a required field for all new customers registered via the Admin Panel and the Members Portal.

          This validation rule will also prevent customers and admins from updating other details if the customer doesn't have a VAT number on file.

          

---

1. Log in to [dashboard.nexudus.com](https://dashboard.nexudus.com/) if you aren't already.
2. Click [**Settings > Validation rules**](https://dashboard.nexudus.com/settings/3/0/0).
3. Add a **Name** for your validation rule.
4. Select the relevant **Location**.
5. Toggle on **This rule is active**.
6. Add a **Description** for your validation rule.
7. Select **Customer** from the **Record type** drop-down list.
8. Add the following snippet under **Formula**.

```
record.TaxIDNumber <> null AND record.TaxIDNumber <> ""
```

1. Add the error message you want to show customers and admins when they forget to specify a VAT number.
2. Click the **Save Changes** button.

---

All set! We recommend testing your validation rule by creating a customer without adding their VAT number. If you see your error message pop up shortly after trying to save the new customer record, your validation rule is working as expected.