Welcome to the Q&A Forum
Browse the forum for helpful insights and fresh discussions about all things SEO.
You could create a segment for just traffic from that campaign (based on your utm_campaign) and make sure that generating the lead is set up as a goal. From there you can go to the Conversion -> Goals -> Goal Urls and see which of your product pages have conversions.
Segment Building: https://support.google.com/analytics/answer/3124493?hl=en
Goal Set up: https://support.google.com/analytics/answer/1032415?hl=en
I would not risk it unless you are shutting down website B completely, otherwise you can beef up your content on site A or your ability to convert on site B.
Google Analytics offers this information if you enable it. The information is based off of Google's Double Click advertising data. You need to update your privacy policy and make a slight alteration to your installed Google Analytics code. This is a free upgrade to your Google Analytics Account.
How do you have your goal set up? it seems like your goal is firing twice, or you have an automatic page reload somewhere, unfortunately problems like this are hard to diagnose without being able to actually see your analytic's information. The best you can do is look at the rules defining your goals and see if they are to broad, if you are basing them off on an event that is hard coded onto your site then you should also look into your code to make sure it is not firing twice during a purchase.
If you are filtering out your office I.P. it should be blocking all traffic from that I.P. Make sure that you are looking at your stored data and not your live analytics as sometimes new filters do not immediately register for the live data.
There are a few things you will want to check.
Make sure that the account that linked the GWT and GA has not changed (such as an agency account did it then left) because the owner of the GWT account determines the verification code.
See if they updated their Google Analytics to Universal, if they have the wrong code/combination it can cause problems. Also with using the GA code to authenticate, make sure that it is placed in the right place (you can use Tag Assistant browser plug in from Google).
As for why it went away, Google will periodically check the authentication to make sure it is still there in case ownership changes, so it is not odd after site changes for this to occur.
If you are using GTM you need to use different code on your page to track E-commerce then if you were hard coding the GA. GTM is not just for checking your code, it is a complete system to allow for custom code (not just GA) to be placed based on rules into any page on your site. It allows a marketer to be able to add advanced tracking and make changes much quicker they if they would have to either code it themselves or work with a developer to place code appropriately onto different interactions.
Without seeing you analytics I can't do much more, but with what you are saying I think you should re-look at how your thank you page is performing, see if that page is getting 2 around double as many page views as sessions, or if there are a large number of page views with less than 1 second, or if you look at your thank you page, is the previous page nearly 50% of the traffic. If your goal is set up correctly the only thing that could be causing this would be the page double loading in quick succession or having 2 copies of your GA code on the page.
You should not lose historic data but re-linking the account with your credentials should fix any problems that you are having.
We use re-targeting ads for cart abandonment, the company we use is conversion pixal based so there would be no issues with your customer CMS.
Did you link your GA and Adwords accounts or are you just tagging? Organic (not provided) is how GA shows all search traffic from users who connect to Google securely (signed into a Google account) so this could be branded traffic but there is no way of knowing in GA.
What do you mean "pages that have nothing to do with my site" are these not on your domain or are they on your domain but you are not familiar with them?
Another quick fix would be to use a canonical tag on all of your pages pointing to the full lowercase versions.
So for the URLs example.com/UPPER; example.com/Upper; and example.com/upper you would place the following into the head so Google knows that these are just variations of the same page, and if will point search to the desired page example.com/upper
Google does not penalize for duplicate content. https://support.google.com/webmasters/answer/66359?hl=en
That being said, these page's won't really be accessible from a search engine because Google will see them all as the same. For map event pages I personally would have them not indexed and create a series of landing pages with links off to the different event times so that you can get organic traffic looking for those events in general and then funnel them to the signup pages.
If you have separate pages for mobile and desktop that contain different information then yes, you should make sure that your meta and title reflect the information that is displayed on the page per device.
You will be fine with redirects, also remember that Google has said that duplicate content is not an issue as long as it is not malicious.
Increasing your load time by more than half will definitely have an effect on your rankings.
Instead of looking at traffic, why not look at conversions. There are ways of spoofing traffic that is no good, who cares if they lost 500 visits per day if none of those visits were buying their product or partaking in other conversion (email sign up, content interactions). I would look deeper into the traffic that is lost, see where it was coming from and what it was doing on the site to see if you lost useful traffic or not.
This is done for pages that may have additional information added to the url in a query string. While I prefer to have all pages canonical to themselves, I highly recommend doing it to any home page or landing page that can have multiple external links pointing to it.
While you will always loose some ranking with large site wide restructures, you can minimize it by having your redirects in place as soon as you make the shift. When I do restructures or site re-launches I create a large CSV that has all of my current URLs and the corresponding URL that it will update to. Double check the list and use it as a checklist to make sure all of your old content properly redirects to the new. On a side note, when doing something like this it is a good time to update your site to secure as you are already redirecting the majority of your pages, so redirected them to the https: version is not much extra work.
As for if you should do this, that will depend on your site goals and if adding the date in the url would benefit your visitors or corresponds with another digital part of your digital strategy.
Honestly there is not much value to a visitor on those pages, if they are looking for a specific brand then they should land on the brand page. I would Canonical all of those pages to the All Brands page and not worry about placing descriptions on each one.