Post sign in URL redirecting to Prod URL instead of preview

[khamat_bn]

Hello, 

Client website has preview configured and before going on Prod we are testing on preview, so we have login module and once we logged in it automatically navigating to prod content. 
May I know where we can check preview configuration, because we don't have any preview runmodes available as well 
What can be our debug points?

[TarunKumar]

HI @khamat_bn ,

In your website , do you have preview configured for Prod author or Prod publisher? If it is Prod publisher then try to hit the prod preview publisher with complete URL.
If it is working fine on preview  publisher and not on dispatcher then some issue from server side may be rewrite rule. Also while hitting the URL trace the access log there you might get some clue.

-Tarun