Updating Windchill 12.0 user data using the REST Services API

Hi all,

I'm a WC admin and my organization has recently made changes to our email addresses. I'm hoping to update our Windchill user's email addresses using Windchill's REST Services API, instead of changing them manually. I plan on writing a python script that uses Odata client to interact with the API, but perhaps it's not possible. I'm looking at the REST Services API and I see a GET request for the /Users endpoint which will display the user data. Unfortunately, I don't see a POST request for this endpoint. In short, I'm wondering if there is a way to update user data in bulk, without having to go through and change each user's email one by one. I am new to this, so I apologize if I'm missing something obvious.

Thanks!