How to track same user on subdomain?

Hi @web, 

Welcome to the Community, happy to help! 

Great work so far! While it was previously allowed to track users across different domains by using _ke parameter , this was changed last year to increase security protection. Now we have switched to using an exchange id, or _kx  parameter. So you will need to go about tracking the user in a different way, which is append the exchange id value to each link on one subdomain that then directs to the other, instead of the previous used code below. But Dov shared two great ways to still find the user to have seamless tracking across both domains!

_learnq.identify().$email

Do you mean that you tried both methods, mentioned in the post you linked above, to find the exchange ID and weren’t successful?

• Decoding the klaviyo cookie and retrieving it
• Expose in our frontend library called _learnq.push(["_getIdentifiers"])  which should return a key value pair in an object with $exchange_id so long as the user is cookied.

If you followed the second option, did you ensure to the script ends in the _kx parameter instead of the _ke parameter? If should look like the code below:

+ '_kx=' + exchange_id)
          }
        });
      }
    }
  }, 1200);
</script>

Thanks for participating in the Community!

-Taylor 

Hey @web,

Can you confirm if the user was identified/cookied on the first domain before attempting to retrieve the $exchange_id?

I’m not a developer, but that error you’re getting of “Unable to process event: _getIdentifiers” seems to indicate that it was unable to process/retrieve the identifier originally. 

David

Hi @David To,

Below code is not working in react. What is the ‘a’ element? 
  $(document).find('a').each(function(){
 

if setting the exchange_id overwrites the values from a _kx parameter?