Clicking a Link in Microsoft Office Opens 2 Tabs
Problem:
Clicking a link in a Microsoft Office product opens two tabs. One tab will be the requested link, the other will show an error from your identity provider.
Solution:
This problem is related to how Microsoft Office products handle opening new links.
Fo fix this, please do the following
- Go to the SAML SSO configuration. 
- In the middle panel, click Redirection. 
- Add the following Non-SSO User Agents:  
- Save the configuration. 
Afterwards, only one tab should be opened when clicking the link.
An alternative solution can be found here: https://docs.microsoft.com/en-us/office/troubleshoot/error-messages/cannot-locate-server-when-click-hyperlink
Please note the described drawbacks in Microsoft's article.
If this does also not help, please contact our support via https://www.resolution.de/go/support.

