Thank you, I have already done with it. But I don't want in that way. In addons, website_sale module -> data folder -> data.xml you could see how the create a customer form parameter's action appears in a coding format. Also you could see website_sale module -> static folder-> src folder-> website_sale_form.xml file in which the form we can view is given in code. I just need to inherit them and create an alumni form. Could you please tell me the solution for it.