Articles by Jeff Hoffman on building and maintaining third-party integrations: vendor API behavior, tests, and the decisions in between.https://queencitycortex.com/en-ushttps://queencitycortex.com/blog/slack-has-2fa-missing/https://queencitycortex.com/blog/slack-has-2fa-missing/Slack's users.list omits has_2fa unless an admin makes the call. Learn why a missing value must mean unknown, not 2FA off, and how to model it in a connector.Sun, 11 Oct 2026 00:00:00 GMTslackvendor-apisdata-modelinghello@queencitycortex.com (Jeff Hoffman)