To stay in a supported state, even organizations that moved all their mailboxes to Exchange Online, have been required to keep at least one Exchange Server running in the Classic AD environment for as long as the directory synchronization to Azure AD is running. The purpose of this Exchange server is to handle the management… Read More »
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 »
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 »
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 »
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 »
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 »
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 »
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 »
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 »
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 »