ActiveCampaign change history: Increase in Failures Using the API

ActiveCampaign reported increased API failures affecting API Availability and US Region - API Availability, with major impact. The incident started at 2025-12-27 17:00 UTC and was resolved at 2025-12-27 17:28 UTC, lasting 28 min; engineers identified the root issue but did not disclose the cause or specific fix.