Google Displaying wrong URL but correct page title and description in SERPS

[PollyKane]

Hi. Our second highest performing page on Google is messed up in the SERPS. This is our login page. It always ranks high. It still does, but the URL is incorrect. Google is referencing an old redirect that was for a one off campaign from January 2014. This page has long been redirected. But now the vanity url for this page is what is displayed in Google. The link goes to our login page but once you log in it redirects you to a page saying the offer has expired instead of your account details. This is a huge issue for us. Can anyone shed some light? I'm having a rel canonical added since this page is used for a lot of vanity deeplinks.

[Andy.Drinkwater]

If Google is seeing an old page that isn't used any longer, why not 301 it to the desired page? A canonical tag will help give Google more of a signal as to your intentions, but it isn't a guarantee in the way a 301 redirect is.

-Andy

[PollyKane]

Thanks for the reply Andy. My technology group is saying a vanity url can't be redirected? Is this true? It deeplinks beyond a login. Thanks again...

[Andy.Drinkwater]

Would you like to PM me the details so I can see exactly what you mean Polly? It's a little awkward to advise without examples sometimes.

-Andy

[PollyKane]

yes, thanks, how do I PM you?

[Andy.Drinkwater]

Click on my name and then use the 'private message this user' button towards the bottom on the left.

-Andy