Advertisers are beginning to see support for negative keyword lists in Performance Max campaigns. This long-requested addition enables easier exclusion of irrelevant search terms across campaigns using existing shared lists.
The feature appears to be rolling out gradually and is accessible in some accounts via the Shared library and when adding negative keywords.
Previously, the option to apply a negative keyword list was visible but greyed out.
This update was shared by Alyssa Knab and Jeremy Young.