---
title: Substring0
slug: neurons-for-itsm/admin-user-help/enu/latest/substring0
createdAt: 2026-07-14T19:16:23.624Z
---

Returns a string containing a substring of consecutive characters from another string.

:::hint{type="info"}
This function can be used to replace the Left and Right modifiers as used in CSM.
:::

## Syntax

Substring0(text,startPosition,length)

## 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                                                           | Yes    |
| 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) | Yes    |
| Business Rules: Calculation Rules (Before Save or Always, with Recalculate On Load)         | Yes    |
| Business Rules: Editing Rules                                                               | Yes    |
| Business Rules: Initialization Rules                                                        | Yes    |
| Business Rules: Read Only Rules                                                             | Yes    |
| Business Rules: Required Rules                                                              | Yes    |
| Business Rules: Validation Rules                                                            | Yes    |
| Client Expressions                                                                          | Yes    |
| Object Permissions                                                                          | Yes    |
| Services                                                                                    | Yes    |
| LDAP                                                                                        | Yes    |
| Mobile                                                                                      | Yes    |
| Quick Actions (except UI Quick Actions)                                                     | Yes    |
| UI Quick Actions                                                                            | Yes    |
| Reports                                                                                     | Yes    |
| Search/Dashboard without field references                                                   | Yes    |
| Search/Dashboard with field references                                                      | Yes    |

## Parameters

| Parameter     | Description                                                                                                  |
| ------------- | ------------------------------------------------------------------------------------------------------------ |
| text          | The text from which to extract the substring.                                                                |
| startPosition | The position of the first character to include in the output. The first character starts with position zero. |
| length        | (Optional) The length of the substring.                                                                      |

## Return Value

:::Paragraph{indent="1"}
Text value.
:::

## Example

$(Substring0 (Symptom, 21, 7))

If the **Symptom** field in the business object being evaluated contains the following:

*Printer seems to be working fine for others. His setup for the printer is fine.*

The function skips the first 21 characters starting from zero and returns the substring starting with index 21 (the 22nd character). The returned string continues for 7 characters. The result in this example is "*orking* ". Note that the space after "orking" is counted as a character.

:::Paragraph{indent="1"}
See also [Substring](docId\:um8bAUcvNr3jtqUj2bO-8)().
:::