See guideline to setting up the N.Rich tag
Google trademark permissions
N.Rich Cross-Channel ads use Google as a distribution channel. If your organization as a trademark owner has requested Google to prevent unauthorized parties from using your trademarks on their ads, you need to provide N.Rich permission to use them. If this is not done, your ads that include your trademark(s) can’t run and this will negatively impact ABM campaign performance. Granting permission is a manual process using a form Google has provided and it typically takes between 1 to 2 weeks to get the approval.