Microsoft Graph API Access Token Issue

Question

I'm having an issue getting an access token through Postman.

I'm following this process "Flow 2". http://codematters.tech/getting-access-token-for-microsoft-graph-using-oauth-rest-api/

"Flow 1" worked for me.

This is the given scenario. I am sending a post request with body.

POST https://login.microsoftonline.com/e0xxxxxx-xxxx-xxxx-xxxx-xxxx09d53164/oauth2/v2.0/token

{

client_id:id

client_secret:secret

grant_type:password

username:user

password:pass

scope:openid

}

Response -> "AADSTS90002: Tenant ' ' not found. This may happen if there are no active subscriptions for the tenant.

Why would the Tenant be blank given it was populated?

Thank you for your help.

Pamela Peng Pamela Peng · Accepted Answer · 2020-05-29T02:47:03

The URL that you send is wrong. This parameter should not be AAD_name, but tenant.

Try this:

POST: https://login.microsoftonline.com/{tenant}/oauth2/v2.0/token
Content-Type: application/x-www-form-urlencoded

client_id=xxxxx
&scope=openid
&username=user
&password=pass
&grant_type=password

You could find your tenant in App registrations:

For more information, you could see here.

If you want to use {{AAD_name}}, you need to set Environment in postman firstly.

Then you could send the post request like the link shows.

Microsoft Graph API Access Token Issue

1 Answers