Azure AD App Client Secret Expiration Notifier

Clients

Techstack

Purpose

Expired app secrets and certificates fail silently — one lapses, an integration breaks, and a security gap opens with no warning until something is already down. The team needed to catch these credentials before they expired instead of discovering the outage after the fact.

Description

We built a scheduled check that reads every app registration across the tenant, compares each secret and certificate against its expiry date, and flags the ones running out of time. Administrators get a plain email listing the affected apps and the days remaining, so renewals land on the calendar instead of after a break. The whole tenant is covered automatically, with nobody tracking dates by hand. What used to be a silent outage waiting to happen becomes a small, planned maintenance item.

Results

• Warned in advance

  alerts days before secrets and certificates expire

• Nothing missed

  every app registration checked automatically across the tenant

• No manual tracking

  staff freed from watching credential-expiry dates

• No more surprises

  expirations become planned renewals, not outages