Hi,

1 - Create a custom object :

HR__c

Fields :

Name

First_Name__c

Job_Code__c

Job_Title__c

Last_Name__c

User__c (Lookup(User))

2 - Create a visualforce page : newuser.page

3 - Create a controller : newuser.class

4 - Create a button on the custom object HR :

Label of the button : Activate USER

Display Type = Detail Page Button

Behaviour : Display in existing window with sidebar

Content Source = visualforce page

content : newuser (your VF page)

5 - Add the button to your object page layout

6 - past the code bellow in your page and controller

____________________________________________________________________

<apex:page standardController="HR__c" extensions="newuser ">

<apex:form>

 


<apex:pageMessages id="error"/>



<apex:pageBlock title="New User" mode="edit">

<apex:pageBlockButtons location="both">

<apex:commandButton value="Save" action="{!saveUser}" />

</apex:pageBlockButtons>




<apex:pageBlockSection title="New User" columns="2">

<apex:inputText value="{!myNewUser.Title}" required="false" />
<apex:inputText value="{!myNewUser.LastName}" required="false" />
<apex:inputText value="{!myNewUser.FirstName}" required="false" />
<apex:inputField value="{!myNewUser.EmployeeNumber}" required="false"/>
<apex:inputField value="{!myNewUser.Email}" required="false"/>
<apex:inputField value="{!myNewUser.Username}" required="false"/>
<apex:inputField value="{!myNewUser.Alias}" required="false"/>
<apex:inputField value="{!myNewUser.CommunityNickname}" required="false"/>
<apex:inputField value="{!myNewUser.TimeZoneSidKey}" required="false"/>
<apex:inputField value="{!myNewUser.LocaleSidKey}" required="false"/>
<apex:inputField value="{!myNewUser.EmailEncodingKey}" required="false"/>
<apex:inputField value="{!myNewUser.ProfileId}" required="false"/>
<apex:inputField value="{!myNewUser.LanguageLocaleKey}" required="false"/>

</apex:pageBlockSection>


</apex:pageBlock>
                      
                      
</apex:form>
</apex:page>

________________________________________________________________________

public with sharing class newuser {

    public HR__c record {set;get;}
    
    public HR__c hr {set;get;}
    
    public User myNewUser {set;get;}
    
    public string last_Name {set;get;}
    
    public string first_Name {set;get;}
    
    public string job_Code {set;get;}
    
    public string name {set;get;}
    
    public string lastName {set;get;}
    
    public string job_Title {set;get;}
    
    public string email {set;get;}
    

      

    public newuser(ApexPages.StandardController controller) {
            myNewUser = new User();
            record = (HR__c) controller.getRecord();
            hr  = [Select Id, Name,First_Name__c, Job_Code__c, Job_Title__c, Last_Name__c, User__c From HR__c where Id=: record .Id LIMIT 1 ];
            myNewUser.FirstName = hr.First_Name__c;
            myNewUser.EmployeeNumber = hr.Job_Code__c;
            myNewUser.Title= hr.Job_Title__c;
            myNewUser.LastName = hr.Last_Name__c;
           

    }
    
    public PageReference saveUser(){
    
    try{
            myNewUser.IsActive = false;
            insert myNewUser;
            hr.User__c = myNewUser.Id;
            update hr;
            return new PageReference('/' + hr.Id);
            
       } catch (Exception e){
                ApexPages.addMessages(e);
                        return null;
        }

    }

}