How to Rotate Certificates or Keys in Production Without Downtime in Apigee X

Certificates and encryption keys have an expiration date. One day, they must be replaced. Sounds simple, right?

Unfortunately, many production outages happen because someone replaces a certificate incorrectly or too early. APIs suddenly start returning SSL handshake failures, clients can't connect, and support teams scramble to fix what should have been a routine maintenance task.

If you've ever wondered how large organizations rotate certificates without interrupting thousands—or even millions—of API requests, you're in the right place.

In this article, you'll learn how to perform certificate and key rotation in Apigee X without downtime, why this process matters, and the best practices used in enterprise API management.