Merge pull request #217 from arajpathak7/master

update Error information

Author: Tiago Brenck

2-WebApp-graph-user/2-3-Multi-Tenant/README.md

@@ -319,6 +319,11 @@ If you are receiving the following error message, you might need to **delete old
 
 If you had provisioned a service principal of this app in the past and created a new one, the tenants that had signed-in in the app might still have the previous service principal registered causing a conflict with the new one. The solution for the conflict is to delete the older service principal from each tenant in the **Enterprise Application** menu.
 
+### Error `The provided request must include a 'response_type' input parameter`
+
+If you try to sign-in with a Microsoft account (MSA), such as hotmail.com, outlook.com, and msn.com, you'd receive this error during admin consent because MSA is not supported at the `/common` endpoint which this sample is using to obtain the admin consent.
+Please use an admin account with from the Azure AD tenant for this purpose.
+
 ## Contributing
 
 If you'd like to contribute to this sample, see [CONTRIBUTING.MD](/CONTRIBUTING.md).