---
sourceDocument: Xanadu ServiceNow AI Platform Administration
sourceDocumentLink: https://servicenow-prod.fluidtopics.net/r/xanadu/platform-administration

 Release :

    - xanadu

ft:locale :

    - en-US

ft:publication_title :

    - Xanadu ServiceNow AI Platform Administration

ft:clusterId :

    - platadm

bundleId :

    - platadm

workflow :

    - Platform


---

# Modify string field length

# Modify string field length {#ariaid-title1}

* Release version: Xanadu
* 
* Updated August 1, 2024
* 
* ![](https://www.servicenow.com/docs/portal-asset/ico-clock) 1 minute to read

You can modify the maximum character limit for a string field.

## Before you begin

Role required: personalize_dictionary

## About this task

The URL type field hides the Max Length field on the Dictionary form by default.
Browsers support URL length up to 2,083 characters. The URL field is a String
field.

## Procedure

1. Navigate to a form that contains the field that you want to modify.
2. Right-click the field label in the form and select Configure Dictionary.
3. Change the Max length field to the desired length.  
   Note:  
   You can change between string-based data types as long as length changes do not cause any data loss from truncation. For example, you can change from a MEDIUM database type to a VARCHAR(100) database type if none of the existing data is greater than 100.
4. Click Update.  
   The system cancels any length change that results in data loss due to truncation.
**Related reference**   

* [Field types](https://servicenow-prod.fluidtopics.net/cZ7qHJRPypFh8A_b8WzMJA "These field types are available to administrators when creating fields or changing the type of existing fields.")