# Okta Hosted Custom Sign In Widget - transformUsername **URL:** \ **Category:** Questions\ **Created:** [February 20, 2025, 9:22am UTC](https://devforum.okta.com/t/okta-hosted-custom-sign-in-widget-transformusername/32059 "2025-02-20T09:22:27Z")\ **Posts on this page:** 3\ **Page:** 1

**Author:** ![aversor](https://avatars.discourse-cdn.com/v4/letter/a/e0b2c6/32.png) [@aversor](https://devforum.okta.com/u/aversor)\ **Post date:** [February 20, 2025, 9:22am UTC](https://devforum.okta.com/t/okta-hosted-custom-sign-in-widget-transformusername/32059/1 "2025-02-20T09:22:27Z")

Hi, I’m just wondering if someone is able to assist me with getting the transformUsername function to work with the Okta hosted custom sign in widget. For the life of me i can’t get it to append the domain suffix onto the username. For context, im using a trial okta tenant with my custom domain setup and the default configuration for the sign in widget, with only the transformUsername function added in. Widget code is below: ```auto {{pageTitle}} {{{SignInWidgetResources}}} {{{OktaUtil}}} ``` Any assistance would be greatly appreciated, as im trying to see if this will solve an issue for us. ---

**Author:** ![vk-giri](https://sea1.discourse-cdn.com/oktadev/user_avatar/devforum.okta.com/vk-giri/32/5178_2.png) [@vk-giri](https://devforum.okta.com/u/vk-giri)\ **Post date:** [February 24, 2025, 10:34am UTC](https://devforum.okta.com/t/okta-hosted-custom-sign-in-widget-transformusername/32059/2 "2025-02-24T10:34:53Z")

Can you try the following to see if this helps ```auto config.transformUsername = function(username,operation) { value = 'abc@' + username; return value } ``` ---

**Author:** ![system](https://global.discourse-cdn.com/oktadev/original/1X/589c4c5f80de422d01f47cee7185a7fb8227835c.png) [@system](https://devforum.okta.com/u/system)\ **Post date:** [March 26, 2025, 10:35am UTC](https://devforum.okta.com/t/okta-hosted-custom-sign-in-widget-transformusername/32059/3 "2025-03-26T10:35:08Z")

Closed on March 26, 2025, 10:35am UTC This topic was automatically closed 30 days after the last reply. New replies are no longer allowed.