Thanks to for this. It will primarily affect those who sell online and use additional URL trackers in their landing page URLs.
"...Google will no longer permit certain exceptions to the policy starting April 1st. "This includes, but is not limited to redirects and vanity URLs," they said.
The destination URL for an ad must match the display URL. However, advertisers who use tracking URLs for the destination can keep doing so as long as the landing page URL matches the display URL.
Sub-domains and additional text in display URLs won't cause problems either, as long as the top-level domain of the destination URL matches it."