It was the previous URL taken (bookmarked) originally from the https://help.sketchup.com/en/help-with page.
It was in my bookmarks bar links for SketchUp for a long time, and then stopped working after y’all changed things to remove references to Make.
Well they used to, …
… and the SketchUp Pro link on the https://help.sketchup.com/en/help-with page still does at least Chrome shows it as: https://help.sketchup.com/content/sketchup-pro
The whole point is that the “content” URLs used to work, but now do not. I thought that there wuse to ba a way to both redirect and notify users if the URLs changed. There was a message that would ask the person to update their bookmarks.
Regardless, … it seems silly to land the person on a 404 page, when they could be taken to the new user guide entry page, or the user guide search page. (ie, you know by the “help.sketchup.com” that they want the Help Center. That by the “en” they want English language. You can ignore the “content” and set the search query to the remainder ?)