Add a Login with Microsoft Button to a WordPress Login Form

Simplify administration and define who can sign in by placing a Login with Microsoft button on your WordPress login through our All‑in‑One Microsoft Office 365 Apps Plugin. This creates a single, predictable entry point on wp‑login.php that users already trust, making sign‑in straightforward while staying aligned with Microsoft Entra ID (Azure AD) policies. It’s a practical way to implement Microsoft Single Sign On (SSO) in WordPress without custom development.

How the Login with Microsoft Button Works on wp‑login.php

The Login with Microsoft button appears next to the usual username and password fields on the default login page. When someone clicks it, they’re sent to Microsoft to sign in and then brought back to WordPress.

A session is created using your site’s configured rules, so permissions and roles apply as expected. If a Microsoft session is already active in the same browser, access is granted immediately without another prompt.

In practice, it behaves like a WordPress Microsoft SSO login button exactly where people look for it: on wp‑login.php. This flow keeps the page familiar for users and straightforward for admins. People who already use Microsoft 365 recognize the prompt and move through it quickly. Those who still need local credentials can use them as before, if you keep that option available.

Key Benefits

Bringing Microsoft sign‑in to the native form improves usability and centralizes control.

• Place a familiar option on wp‑login.php with no redesign.
• Enable immediate entry when a Microsoft session is active.
• Keep behavior aligned with tenant policies and session standards.
• Lower friction by presenting SSO where users normally sign in.
• Use a configuration‑led setup that scales cleanly.

Requirements

Confirm all of the following before you enable the Login with Microsoft button:

• The All‑in‑One Microsoft Office 365 Apps Plugin is installed and active on your WordPress site.
• Microsoft Entra ID (Azure AD) SSO is fully configured: create the app registration in Entra ID, set the Redirect/Callback URI exactly as shown in the plugin, and save the Client ID, Client Secret, and Tenant (Directory) details in the plugin.
• A WordPress Administrator Account is available to access the plugin settings and manage login options.