Is it possible to dynamically change the external URL in the DNN menu based on a a unique ID?  Such as https://www.thirdpartydomain.com?DealerID={variable/token/dynamic} in the DNN Menu Link.

For example:

In the browser, a visitor clicks  http://www.mydomain.com/dealer and we pass the dealer segment to a third party software to get the dealer ID, First Name, Last Name, Email and so on to serve a unique dealer page.  Now we want to track commissions based on dealer referrals when that person signs up for various offerings.  

We need to now set the external URL in the menu to our third party store with an appending dealer ID.  For example, www.thirdpartydomain.com?DealerID={variable} gets replaced by www.thirdpartydomain.com?DealerID=12345.

We have been unsuccessful using a session variable within the menu itself.  Is there another preferred option / module to do this customization?