State of knowledge

13 November 2026
Issues have been reported worldwide with Microsoft Teams, Exchange and Outlook.

As a result, ProCall Desktop for Windows cannot be started when Outlook integration is enabled. 


Affected versions: ProCall Desktop for Windows

Not affected: ProCall Web (preview) 


Observation

ProCall Desktop for Windows cannot currently be launched.

Possible cause: Outlook integration enabled in ProCall

Due to the current global disruption affecting various Microsoft 365 services, ProCall Desktop for Windows may fail to launch if Outlook integration is enabled within the ProCall Client.

Solution/Procedure

Disable the Outlook integration via the ProCall workstation settings or switch Outlook to offline mode.

Further information

External link containing information from Microsoft on offline mode: https://support.microsoft.com/en-us/outlook/getstarted/how-to-work-offline-in-outlook-for-windows#tabpanel_1_classic-outlook