Integrations & API
Use the Illizeo REST API
Last Updated: 21.09.2026Illizeo exposes a REST API documented in OpenAPI. Authentication uses a scoped token / secret pair, sent in two HTTP headers. Reading time5 min LevelAdvanced Last updatedMay 2026 ModuleIntegrations & API Main endpoints Domain Abilities available Employees read, write Absences read, write Attendance read, write Documents read, write Signatures read, write Offices read, write Departments read, write...
Configure webhooks to react to events
Last Updated: 12.10.2026Subscribe an https endpoint to HR events, verify the HMAC signature, understand retries and the delivery log.
Make Illizeo coexist with a third-party ATS or HRIS
Last Updated: 21.09.2026Many companies keep an ATS upstream or a legacy HRIS alongside Illizeo. Here is how to make them coexist — without a dedicated connector, because none exists. Reading time5 min LevelAdvanced Last updatedMay 2026 ModuleIntegrations & API Coexistence strategies What you want to do The actual means Create employees hired in an ATS The REST...
What goes into Slack — and what never leaves
Last Updated: 16.10.2026Seven notifications can reach Slack, and only one thing reaches a channel: counters. Here is the exact rule, and why it is fail-closed. Read5 min LevelIntermediate UpdatedSeptember 2026 ModuleIntegrations & API The principle A Slack channel is readable by the whole workspace, external guests included. A sick-leave absence posted into a team channel is not...
Match employees to their Slack account (and the email fallback)
Last Updated: 16.10.2026A Slack message goes to a person. Illizeo therefore has to know which Slack account belongs to which employee — and what it does about the rest. Read5 min LevelIntermediate UpdatedSeptember 2026 ModuleIntegrations & API Why matching is needed A Slack message goes to a person, not to an email address. Illizeo therefore has to...
Connect Slack to Illizeo
Last Updated: 16.10.2026The Slack connector is installed once for the whole company, by an administrator. Illizeo then writes into Slack as an app — never impersonating anyone. Read5 min LevelIntermediate UpdatedSeptember 2026 ModuleIntegrations & API A company connector, not a personal setting Unlike the calendar and video connectors (Microsoft 365, Google, Zoom), which each employee plugs in...
