Lately we noticed a growing number of administrators, reporting that users were no longer able to sign in with Microsoft. More often than not, the configured client secret for the registered application (= App registration) in Azure AD had expired.

With its latest version, WPO365 can help monitor the expiration date(s) of AAD application / client secrets. To begin using this new feature – that has been added to WPO365 | LOGIN version 24.3 and WPO365 | MICROSOFT GRAPH MAILER version 2.21 – you must add an new permission to your registered application. All steps required to accomplish this configuration are documented in this article.

Don’t wait too long!