To report an issue with a particular banner:
- If you don't know the name of the banner, you can use Special:BannerAllocation to check what banners are currently running on a given site.
- Create a Phabricator task tagged with #Wikimedia-CentralNotice-Administration, including the name of the banner
- Contact the admin who created or last edited the banner (you can find a link to "View banner edit history" at the top of the banner details page e.g. Special:CentralNoticeBanners/edit/wikilovesfolklore2023)
To report a technical issue with the CentralNotice system itself, please create a Phabricator task tagged with #MediaWiki-extensions-CentralNotice