---
title: Regex
slug: neurons-for-itsm/admin-user-help/enu/latest/regex
createdAt: 2026-07-14T19:16:50.305Z
---

Constructs a regular expression from text.

See [https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Regular\_Expressions](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Regular_Expressions) and [http://stackoverflow.com/questions/46155/validate-email-address-in-javascript](https://stackoverflow.com/questions/46155/how-can-i-validate-an-email-address-in-javascript) for information about regular expressions.

## Syntax

Regex(exp, flag)

## Enabled For

For a description of the business object categories, see [Notes on "Enabled For"](docId\:u26v9feCFs6iLwA0-PVJd).

| Business Object Category                                                                    | Yes/No |
| ------------------------------------------------------------------------------------------- | ------ |
| Business Rules: Before-Save Rules                                                           | Yes1   |
| Business Rules: Calculation Rules (After Save, with or without Also Recalculate on Load)    | Yes    |
| Business Rules: Calculation Rules (Before Save or Always, without Also Recalculate On Load) | Yes1   |
| Business Rules: Calculation Rules (Before Save or Always, with Recalculate On Load)         | Yes    |
| Business Rules: Editing Rules                                                               | Yes1   |
| Business Rules: Initialization Rules                                                        | Yes1   |
| Business Rules: Read Only Rules                                                             | Yes1   |
| Business Rules: Required Rules                                                              | Yes1   |
| Business Rules: Validation Rules                                                            | Yes1   |
| Client Expressions                                                                          | Yes    |
| Object Permissions                                                                          | No     |
| Services                                                                                    | Yes    |
| LDAP                                                                                        | Yes    |
| Mobile                                                                                      | Yes    |
| Quick Actions (except UI Quick Actions)                                                     | Yes1   |
| UI Quick Actions                                                                            | Yes    |
| Reports                                                                                     | Yes1   |
| Search/Dashboard without field references                                                   | Yes1   |
| Search/Dashboard with field references                                                      | No     |
| 1. Except in services.                                                                      |        |

## Parameters

| Parameter | Description                                                  |
| --------- | ------------------------------------------------------------ |
| exp       | The regular expression, without slashes.                     |
| flag      | (Optional) The flags associated with the regular expression. |

## Return Value

Regular expression that is a text value.

## Example

Regex(“^\[A-Za-z0-9.\_%+-]\{1,64}@(?:\[A-Za-z0-9-]\{1,63}\\.)\{1,125}\[A-Za-z]\{2,63}$","i")

This example returns a regular expression that matches a valid email address regardless of how capitalization is used in the address:

- support\@ivanti.com: The expression above returns true.
- Support\@Ivanti.com: The expression above returns true.
- support.ivanti.com: The expression returns false.