Tag Archives: Office 365

How to switch Office 365 licenses using PowerShell

When making changes to licenses in Office 365, I sometimes experience that the old and new licenses include options that conflict, and does not allow the licenses to be pooled or added to accounts at the same time. Changing the license of users in Office 365 need to be performed without impacting the end users… Read More »

Fixing the "ExchangeGuid is mandatory on UserMailbox" issue

During a recent Office 365 migration project I ran into an issue on the on-premises Exchange 2013 platform, when trying to create Mail User objects for the migrated mailboxes. The following error appeared when adding a new Mail User: ExchangeGuid is mandatory on UserMailbox. Database is mandatory on UserMailbox. After first verifying that the Exchange… Read More »

Resolving "Unable to retrieve proxy configuration data from the Federation Service" WAP fail (Event ID 422)

Recently I encountered a Web Application Proxy (WAP) server that was stuck in a failed state after changes to the ADFS backend service. In the Remote Access crimson log on the WAP server, an event 422 error appeared once every minute, showing that the WAP server could not retrieve proxy configuration from the ADFS backend… Read More »

How to resolve “An error occurred” in CRM for Office 365 with ADFS

This error can occur in a topology where an ADFS server is used for authenticating to Office 365 and the CRM Online service. When starting the CRM for Office 365 plug-in, the users receive the following error message during the ADFS authentication: An error occurred An error occurred. Contact your administrator for more information. Error… Read More »

Resolving Web Application Proxy error code 0x80075213

I have have worked on a case where external access to the ADFS service was  blocked and the Remote Access Management console on the WAP server fails with this error:   Web Application Proxy could not connect to the AD FS configuration storage and could not load the configuration. Make sure that the Web Application… Read More »

How to resolve Mail Users not synced to Azure AD

In a recent support case, the migration of mail boxes from an on-premise Domino platform to Exchange Online was started, but the migration got stuck because the on-premises accounts, enabled as Mail Users, did not appear in “Contacts” in the Exchange Online Admin Center. Also, in the on-premises environment Azure AD Connect was present and… Read More »

How to resolve OFFCAT “must be installed with elevated permissions on Windows Server” error

During a recent Office 365 troubleshooting scenario I needed to install the Microsoft Office Configuration Analyzer Tool (OFFCAT), but noticed that OFFCAT cannot be installed on Windows Server 2012 R2 using the default installation process. In this case OFFCAT throws the following error: The cause of issue is User Account Control that does not grant… Read More »

Office 365 introduces different update cycles for Office 2016 apps

Based on the Office 2016 update model, that Microsoft released last year, Office 365 is now introducing the option to control how often updates are introduced to the Office 365 Client apps. Note that the ability to change the update channel only applies to 2016 editions of Office 365 ProPlus, Office 365 Business, Project Pro… Read More »

How to resolve slow Outlook 2016 Autodiscover with Office 365

As the use of Office 2016 has started to gain momentum, a number of organizations have experienced cases where Outlook 2016 take extraordinary long time to setup a new profile with a hosted Exchange 2010/2013 solution, like Exchange Online. The situation is furthermore complicated when the option to manually enter the Exchange server settings is… Read More »

How to install and configure Web Application Proxy for ADFS

The Web Application Proxy (WAP) is a role service of the Remote Access server role in Windows Server 2012 R2. One of the primary roles of the WAP is to performs pre-authenticates access to web applications using Active Directory Federation Services (AD FS), and in this capacity the WAP functions as an AD FS proxy.… Read More »