To give users the most streamlined experience, AdWords now forbids the link listed in your ad to redirect to a trackingURL. Parallel tracking is currently optional, but as of October 30, 2018, it will become mandatory. Google introduced new shopping updates for 2018.
Keep Categories Out of Product URLs I know some SEOs will tell you that you need to stuff URLs with keywords, but it is such an insignificant factor that it doesn’t warrant the messy duplicate content problem it creates. Does your URL change?