---
title: Exchange Online – Changes on Reply-URL are coming - cubesys
description: Microsoft has identified that one of the Reply-URL used by Exchange Online for authentication and authorization is unsafe.As result, the Reply-URL list is going to be updated by end of March 2021.The Reply-URL being removed from the list is ietf:wg:oauth:2.0:oob.This will impact Exchange Online PowerShell modules earlier than 1.0.1, automation…
---

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# [Exchange Online – Changes on Reply-URL are coming - cubesys](https://www.cubesys.com.au/blog/exchange-online-changes-on-reply-url-are-coming)

 Written by [cubesys](https://www.cubesys.com.au/blog/author/cubesys) | Feb 3, 2021 1:00:00 PM

Microsoft has identified that one of the Reply-URL used by Exchange Online for authentication and authorization is unsafe.

As result, the Reply-URL list is going to be updated by **end of March 2021**.

The Reply-URL being removed from the list is **ietf:wg:oauth:2.0:oob**.

This will impact Exchange Online PowerShell modules earlier than **1.0.1**, automation with ModernAuth invoking New-PSSession and Exchange Hybrid Configuration Wizard (HCW) earlier than **17.0.5785.0**.

It is recommended to upgrade Exchange PowerShell modules or/and Exchange HCW (from [https://aka.ms/hybridwizard](https://aka.ms/hybridwizard)) as they have been already updated.

The new Reply-URL list will be as follow:

****

| **Environment** | **Reply-URL** |
| --- | --- |
| WW/PROD | [https://login.microsoftonline.com/organizations/oauth2/nativeclient](https://login.microsoftonline.com/organizations/oauth2/nativeclient) |
| GCC High | [https://login.microsoftonline.us/organizations](https://login.microsoftonline.us/organizations) |
| US Gov DoD | [https://login.microsoftonline.us/organizations](https://login.microsoftonline.us/organizations) |
| Office 365 China | [https://login.chinacloudapi.cn/organizations](https://login.chinacloudapi.cn/organizations) |
| Office 365 Germany | [https://login.microsoftonline.de/organizations](https://login.microsoftonline.de/organizations) |

If you faced any of the below errors just update the corresponding components:

- Exchange Hybrid Configuration Wizard

> ADSTS50011: The reply URL specified in the request does not match the reply URLs configured for the application: ‘a0c73c16-a7e3-4564-9a95-2bdf47383716’

- Exchange PowerShell

> Sorry, but we’re having trouble signing you in.  
> ADSTS50011: The reply URL specified in the request does not match the reply URLs configured for the application: ‘fb78d390-0c51-40cd-8e17-fdbfab77341b’

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