This is quite confusing, but I'm going to try to explain it better...
The thing is that before a page (A, B, C,...) is loaded, I want to know if my user has already been into page X.
So I have an If condition in the beggining of the preparation of each page that compares the value that comes in the URL (if any) with a value stored (in a session variable). That value is generated in page X, and in the end of page X the value is both stored in the session variable and sent as paramenter to the ExternalURL...
I wanted something similar to a Destination that sends the generated paramenter, but I don't want to have a Switch with as many Destinations as possible income pages.
The thing is that before a page (A, B, C,...) is loaded, I want to know if my user has already been into page X.
So I have an If condition in the beggining of the preparation of each page that compares the value that comes in the URL (if any) with a value stored (in a session variable). That value is generated in page X, and in the end of page X the value is both stored in the session variable and sent as paramenter to the ExternalURL...
I wanted something similar to a Destination that sends the generated paramenter, but I don't want to have a Switch with as many Destinations as possible income pages.