When logging in to ExtendSync for Outlook (NetSuite Edition) using a Microsoft account, you may encounter one of the errors listed below.

This article explains:

What each error means
Why it happens
What action is required to resolve it

Common Microsoft Login Error

CEFI Error code	Error Message	Action Required
CEFI-1113	`RefreshTokenCookieIsRequired`	Make sure third-party cookies are enabled in your browser. ➡️ See detailed steps to enable third-party cookies.
CEFI-E1118	`ErrorCode:invalid_request, ErrorDescriptionattributes required: [given_name]`	The user’s first name field is missing in the Microsoft portal. Action: Admin must add the user’s first name in Azure AD / Microsoft Entra ID ➡️ How to add first name to Microsoft profile
CEFI-E1119	`ErrorCode:invalid_request, ErrorDescriptionattributes required: [email]`	The user’s email address attribute is missing in Azure AD. Action: Admin must add the email attribute to the user’s profile. ➡️ How to add email address to Microsoft profile
CEFI-E1120	`ErrorCode:server_error, ErrorDescriptionAADB2C90273: An invalid response was received : 'Error: access_denied,Error Description: AADSTS65004: User declined to consent to access the app.`	The user or admin denied consent for ExtendSync. Action: User should try logging in again and send a new request for admin approval.
CEFI-E1120	`ErrorCode:server_error, ErrorDescriptionAADB2C90273: An invalid response was received : 'Error: access_denied'`	Similar to above, consent was declined. Action: Regrant consent. User must retry login and request admin approval.
CEFI-E1120	`ErrorCode:access_denied, ErrorDescriptionError response from Identity Provider; error=access_denied`	Access denied by the Microsoft Identity Provider. Action: Regrant consent. User must retry and resend admin approval request.
An error occurred while sending the request.	`Error while handling callback.` `System.Net.Http.HttpRequestException: An error occurred while sending the request.` `---> System.IO.IOException: The response ended prematurely.`	This indicates a temporary network error. Action: Wait a few minutes and try again.
invalid_request	`ErrorDescriptionRead timed out`	The request timed out while connecting to Microsoft. Action: Try again. Usually resolves on retry.
server_error	`ErrorCode:server_error, ErrorDescriptionAADB2C90289: We encountered an 'invalid_grant' error connecting to the identity provider.`	The Microsoft Identity Provider failed to grant access. Action: Regrant consent. User should retry login and resend admin request.
NA	`A temporary issue occurred. Please try again later.`	Temporary system issue. Action: Wait and try again later.