We need to check for three possible outcomes when we replace the page impressions with content impressions, but don't change the site id:

• content impressions will be ignored (because there is no corresponding "page" on which they take place, because in reality it's a different page (wikipedia.de))
• the content impressions generate additional page view events for the donation start page. This will look like many people went there but then abandoned the form.
• the content impressions are counted correctly

Note
Part of this investigation task is to use an actual tracker instance as a parameter for the new [[ https://github.com/wmde/fundraising-banners/blob/master/shared/matomo_tracker.js | MatomoTracker ]] class. Pay attention that you don't use the tracker for wikipedia.de but for spenden.wikipedia.de. You can find documentation on how to instantiate trackers for multiple sites at: https://matomo.org/blog/2017/02/complete-guide-tracking-websites-web-apps-multiple-piwiks-easily-efficiently/