How is commerce at UTM?

When does Google Anaytics record UTM parameters for a session?

• I have traffic arriving from links that are properly tagged with UTM params, however the page they are trying to access is only accessible to logged-in users. When this happens, our system forces a sign-in page with these parameters ?next=[target path]?utm_source=[source]&utm_medium...etc. After the sign-in page, the user is directed to the intended page with the full URL including UTM tags, but it appears that GA is not recording them under the campaign/medium/source that they are tagged with. Does GA only record the UTM tags on the first page loaded in the session? If this is the case, it seems to not be seeing the UTM params because they are after a "?" instead of an "&" in the redirect page that is loaded.

• Answer:

  In theory, anytime the user views a URL with UTM parameters, the Source, Medium and Campaign get 'updated'. I have just verified this on our website. As to your problem, we have a similar mechanism on our website (forward after login with parameters). I would really like to see your full URL of the page the user arrives at after logging in to give a decent answer. In any case, the problem may be that your first URL is incorrect. There can only be one ? in a URL (for the first parameter), every other parameter after that first one has to be preceded by a &. That's why the utm parameters will not be interpreted by Google Analytics. So instead of ?next=[target path]?utm_source=[source]&utm_medium...etc try ?next=[target path]&utm_source=[source]&utm_medium...etc In any case, you should not add the parameters a second time for the same session (you might start a new session that way, but I am not certain about this). If the domain of the login page is the same as the destination page, adding the utm parameters to the URL on the login page should do the job.