# Best Practice for Customizing Universal Login/SignUp

**URL:** <https://community.auth0.com/t/best-practice-for-customizing-universal-login-signup/187418>\
**Category:** Get Help\
**Tags:** new-universal-login-experience, login-experience\
**Created:** [May 30, 2025, 3:49pm UTC](https://community.auth0.com/t/best-practice-for-customizing-universal-login-signup/187418 "2025-05-30T15:49:37Z")\
**Posts on this page:** 1\
**Showing post:** 6

<div class="post-metadata">

**Author:** ![jdrew1](https://sea1.discourse-cdn.com/auth0/user_avatar/community.auth0.com/jdrew1/32/61813_2.png) [@jdrew1](https://community.auth0.com/u/jdrew1)\
**Post date:** [June 11, 2025, 7:57pm UTC](https://community.auth0.com/t/best-practice-for-customizing-universal-login-signup/187418/6 "2025-06-11T19:57:05Z")

</div>

Thanks, Vlad.

The event.request.body object is empty in the onExecutePreUserRegistration actions. Seems like the same issue this user was having: [ACUL Sending custom data on signup](https://community.auth0.com/t/acul-sending-custom-data-on-signup/184130)

Can you comment on the recommendations in that post? Or perhaps recommend another approach? Seems like this should work, given the documentation:

 ![image](https://global.discourse-cdn.com/auth0/original/3X/5/e/5e5000e6872542cb2ba9c01c5089f79821257a06.png)

---

_[View the full topic](https://community.auth0.com/t/best-practice-for-customizing-universal-login-signup/187418)._