Monitor expiring EntraID application secrets and notify responsible
Monitor expiring EntraID application secrets and notify responsible Stay ahead of credential expirations by automatically detecting Entra ID application client secrets and certificates that are about to expire, and sending a neatly formatted email report. What this workflow solves Expired client secrets and certificates are a common cause of unexpected outages and failed integrations. Manually checking expiration dates across many Entra ID applications is tedious and easy to miss. This workflow automates the discovery and reporting of credentials that will expire within a configurable time window. Key features Fetches all Microsoft Entra ID applications along with: Client secrets (passwordCredentials) Certificates (keyCredentials) Splits credentials into individual entries for easier processing Filters credentials expiring within the next N days (configurable) Normalizes results into a consistent structure including: Application name App ID Credential type (Client Secret / Certificate) Credential name + ID Days remaining until expiration Generates an HTML table report, sorted by application name Sends an email only when expiring items are found (otherwise does nothing) How it works Fetches all Entra ID applications and their credential metadata via Microsoft Graph Separates client secrets and certificates into individual entries Filters entries that expire within the configured time window Builds a normalized list of expiring items with days remaining Emails an HTML table report (only if results exist) Setup requirements Microsoft Entra ID app registration* with Microsoft Graph *Application permissions**: Application.Read.All In n8n: Create Microsoft Graph OAuth2 credentials (Client Credentials flow recommended) Assign those credentials to the Get EntraID Applications and Secrets HTTP Request node Update the Set Variables node: notificationEmail: where to send the report daysBeforeExpiry: alert window in days (e.g., 14) Notes The email table highlights soon-to-expire credentials more prominently (based on remaining days). For automation, replace the manual trigger with a Schedule Trigger (e.g., daily/weekly). The workflow accesses metadata only (names/IDs/expiry), not secret values. An n8n automation workflow template by Alexander Schnabl.
Alexander Schnabl
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