hi Aswathnarayana,

   If you have any doubts refer the below image. 

Don’t change the Administration module directly, look at either making a Generalisation of the Account entity or add a 1 to 1 association to the Account entity with your additions. If you change the Administration module directly you are locking yourself out of future upgrades.

https://docs.mendix.com/refguide/generalization-and-association/

You can try below steps:

Open your Mendix application in the Mendix Modeler.

• Navigate to the module or entity where you want to add the email field. Typically, this would be the "Account" entity or module that manages user accounts.

• In the domain model editor, locate the "Account" entity or the entity representing user information.

• Right-click on the entity and select "Add Attribute" from the context menu.

• Name the attribute "Email" or any other suitable name that represents the email field.

• Set the data type of the attribute to "String" or "Text" to store the email address as a text value.

• Optionally, you can define validation rules for the email field to ensure the entered value follows a valid email format. For example, you can set a validation rule to check if the entered email address contains the "@" symbol and a domain name.

• Save the changes to the domain model.

• Next, go to the form or page where you want to add the email field for creating a new user account.

• Add an input field widget to the form or page, and set the "Attribute" property of the input field to the newly created "Email" attribute.

• Optionally, you can configure the input field widget to display an appropriate label, placeholder text, and any other desired properties.

• Save your changes to the form or page.

Hi Istvan Danyi

While creating user we don't have email field in the current administration account screen, since same is needed for me to send email using email template by fetching email from the account mondul,

If you have reference to fetch this email from Account module pls guide me 

Thanks
Ashwath

Don’t change the Administration module directly, look at either making a Generalisation of the Account entity or add a 1 to 1 association to the Account entity with your additions. If you change the Administration module directly you are locking yourself out of future upgrades.

https://docs.mendix.com/refguide/generalization-and-association/

Good luck!