Depending on what sort of data you want to send the easiest way to send from 1 page to another is using the URL scope.
So in your URL you would have something like: http://www.domain.com/page.cfm?data=12345
Then on the page you sent it to you reference "url.data". For example <cfoutput>#url.data#</cfoutput> would produce 12345
If you have tried a method you are looking to use, post some code for people to look at and help you with the problem
I don't want to use URL scope.
I could like to set it in request scope just like we do it in servlet request.setAttribute("var","value");
Vars in request scope will go away at end of request. They will not be available to another request.
Can you give more detail on what you are trying to do? What do you mean by one cfm to another?
Its a simple login application
1)first i go to index.cfm page where i enter details.
2)It goes to login.cfm where i have written function calls to components(components are in separate cfc file ).
3) After authentication i will redirect him to index.cfm where i want to display success/failure message i.e set variable in login.cfm and display it on index.cfm