You can use negative keywords to help prevent your ads from being displayed to customers who are unlikely to click them. However, if you choose a negative keyword that is identical to an existing keyword, it will result in a conflict.
Possible conflict types are:
Possibly intentional: Some advertisers intentionally create negative keyword conflicts to block a portion of match types from triggering your ads. For example, if your phrase match keyword is “stereo plug”, you might also choose “stereo plug” as your exact match negative keyword text to match only with this phrase. In this scenario, customers that are searching for specific items like “3.5mm stereo plug” or “gold stereo plug” are more likely to see your ad.
If you intentionally created this conflict to block certain match types from triggering your ads, no action may be required.
From the top menu, select Reports > Reports > Performance > Negative keyword conflicts.
If you're using the new Microsoft Advertising navigation, from the navigation menu on the left, select Reporting > Default reports > Performance > Negative keyword conflicts.
From the top menu, select Reports > Reports > Product ads > Product negative keyword conflicts.
If you're using the new Microsoft Advertising navigation, from the navigation menu on the left, select Reporting > Default reports > Product ads > Product negative keyword conflicts.
Please note that the Conflict type column, which shows “possibly intentional” or “true,” is not available in product negative keyword conflict reports.