TDM: Looking to update ${action_url} in the new user welcome message

Products

• CA Test Data Manager (Data Finder / Grid Tools)

Issue/Introduction

When a new user to the portal is created, he receives an email with a link to confirm his account.
By default, the email contains a variable ${action_url} which is the server's name (ex. https://<<SERVER_NAME>>:8443/TestDataManager/resetPassword.html).
Could it be possible to change this address for our domain name (ex. https://<<DATAPORTAL_URL>> ?

Environment

TDM Portal
Test data manager 

Resolution

There is a method to customize Portal Screens. 
To answer your specific question, please backup and make a copy of the file and then edit:
%Portal_Home%\Program Files\CA\CA Test Data Manager Portal\Mail Templates\WelcomeEmailTemplate.vm

In the future, when you upgrade, you will need to re-customize each page changed.