AzureAD no longer accepts tenantId

[tomitrescak]

Provider type

Azure Active Directory

Environment

  System:
    OS: macOS 15.2
    CPU: (10) arm64 Apple M1 Max
    Memory: 246.92 MB / 32.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 22.6.0 - /opt/homebrew/bin/node
    Yarn: 1.22.19 - /usr/local/bin/yarn
    npm: 10.5.2 - /opt/homebrew/bin/npm
    pnpm: 9.4.0 - /opt/homebrew/bin/pnpm
    bun: 1.0.0 - ~/.bun/bin/bun
  Browsers:
    Edge: 131.0.2903.147
    Safari: 18.2
  npmPackages:
    next: ^15.1.4 => 15.1.4 
    next-auth: 5.0.0-beta.25 => 5.0.0-beta.25 
    react: ^19.0.0 => 19.0.0 

Reproduction URL

https://github.com/tomitrescak/next-auth-azure-ad-error

Describe the issue

It looks like both Azure Entra and Zure AD provider no longer accept tenant ID

This is my config

import AzureADProvider from "next-auth/providers/microsoft-entra-id";

AzureADProvider({
      name: "Organisation - Staff",
      id: "staff",
      clientId: env.STAFF_AZURE_CLIENT_ID,
      clientSecret: env.STAFF_AZURE_CLIENT_SECRET,
      tenantId: env.STAFF_AZURE_TENANT_ID, // <=== WILL BE ERROR
    }),

Consequently, it seems that the tenant ID is being sent to azure as "common", and not rerquired STAFF_AZURE_TENANT_ID.

This leads to the following error coming from Azure:

Application '{appId}'({appName}) is not configured as a multi-tenant application. Usage of the /common endpoint is not supported for such applications created after '{time}'. Use a tenant-specific endpoint or configure the application to be multi-tenant.

How to reproduce

Add the AzureADProvider with the backend not supporting Multi-Tenancy applications and requiring tenantId

You can fix this by downgrading to next-auth 5.0.0-beta.22

Expected behavior

The "tenantId" should exist and be supported as per documentation at:

https://authjs.dev/getting-started/providers/azure-ad

[tomitrescak]

FYI, the last version that is supporting tenantId is next-auth 5.0.0-beta.22