OAuth2 Microsoft - "invalid_client" Error (AADSTS7000222: Expired Secret) Despite Creating New Secret

Questions
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Describe the problem/error/question

I’m trying to connect a Microsoft account to n8n using OAuth2 (client credentials flow), but I keep receiving an “invalid_client” error indicating that the client secret is expired — even though I’ve already created and applied a new secret in the Azure Portal. I’m not sure if this is a caching issue, a config error in n8n, or something on Azure’s side.

What is the error message (if any)?

{
“error”: “invalid_client”,
“error_description”: “AADSTS7000222: The provided client secret keys for app ‘d732aeb1-ad6b-41fa-8ff1-093b175cb1fa’ are expired. Visit the Azure portal to create new keys for your app: How to register an app in Microsoft Entra ID - Microsoft identity platform | Microsoft Learn, or consider using certificate credentials for added security: Microsoft identity platform certificate credentials - Microsoft identity platform | Microsoft Learn. Trace ID: 29f15238-f610-4143-bbd5-1298cf541002 Correlation ID: c8a1076f-cb99-4720-b1cc-5a3e7db81b64 Timestamp: 2025-06-10T12:52:31Z”
}

Please share your workflow

This is a simple test workflow using the Microsoft Graph API to fetch users using the OAuth2 API credential configured with the client credentials grant type.

  1. HTTP node configured to GET https://graph.microsoft.com/v1.0/users
  2. Uses Microsoft OAuth2 credential with:
    • Auth URL: https://login.microsoftonline.com/common/oauth2/v2.0/authorize
    • Token URL: https://login.microsoftonline.com/common/oauth2/v2.0/token

Share the output returned by the last node

Status Code: 401
{
“error”: “invalid_client”,
“error_description”: “AADSTS7000222: The provided client secret keys for app ‘d732aeb1-ad6b-41fa-8ff1-093b175cb1fa’ are expired.”
}

Information on your n8n setup

  • n8n version: 1.95.3
  • Running n8n via (Docker, npm, n8n cloud, desktop app): Docker
  • Operating system: Ubuntu

Additional info:

  • I deleted and re-added the OAuth2 credentials in n8n.
  • I created a brand-new client secret in Azure and copied it immediately after creation.
  • I restarted the n8n instance to avoid any caching issues.
  • The secret is confirmed to be valid and active in Azure.

Questions:

  • Can you please help me in solving this issuer?

Thanks in advance for any help!