GTM with HTTP cookie?

Guys - thanks for your response. I understand if we use different host name for the two data centers that would be easy, like us.abc.com and asia.abc.com; we can just update our web site code to check the cookie and then do a 302. The problem is our app isn't ready for supporting multiple site names yet, at this point we have to use just www.abc.com, there is other dependencies that is a little hard to overcome, that is why we were wondering if that can be done via GTM.

 

 

Thanks!