Redirect On login

Hello all,
I have a lil problem. I have an external url link on my website. When users click on that link, i need them to be authenticated (either they login or register) before getting to the final destination i.e the External Url. I was able to get this done but when they aren't logged in, the CB login window opens for them to login. But after logging in, they are taken to User Profile instead of the External Url. I used the hidden menu process and wrapped the external url in an iframe.
I just want them to be directed to the external url after logging in, Please help

Edit your CB Login module and set your login redirect url to your external URL. Alternatively you can use CB Auto Actions on the after login trigger and its Redirect action to send them to your URL.