Office 365 – ADFS authentication error code 8004789A when logging with web browser
If you are using Office 365 and have implemented ADFS to manage the authentication to Office 365 services, this post is for you You may get the following error code – 8004789A – when logging on to Office 365 with web browser (Exchange Online OWA or SharePoint Online), while Outlook or any ActiveSync device is …
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