Hello @Shruti1 ,
Adobe Campaign uses a console as a user interface. This console connect to the server.
You can customise data model as you need, so when you have to display some information to the user, you need to define what we call "forms" (object xtk:form).
In those forms, you can show information, and add inputs to let user edit them. For example, you can add an input for editing a recipient email adress.
If you need more informations about forms, I suggest you to read the online documentation and the form part of jsapi
Cedric