Converting Okta Usernames to Lowercase for Application Assignment
Nov 28, 2025
Lifecycle Management
Okta Classic Engine
Okta Identity Engine
Overview
Applies To
- Okta administrators
- Organizations with applications that require case-sensitive usernames
- Organizations with inconsistent AD usernames
Solution
Follow the steps or video below.
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Navigate to the desired application in the Okta Admin Dashboard.
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Click on the Sign On tab.
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Set the Application username format to Custom.
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Enter the following Okta Expression Language formula in the custom expression field:
String.toLowerCase(user.login)
By using the Okta Expression Language and the String.toLowerCase(user.login) expression, the username will be automatically converted to lowercase characters when a user is assigned to the application. This ensures the application's case-sensitive requirements are met, even when the organization's AD usernames are inconsistent.
