ITMS 8.5, ITMS 8.0 HF6, ITMS 8.1 and ITMS 7.6 HF7 with Office 365 support rollup installed.
Symantec Management Agent logs show. "Process finished with status Success, extended status: ","OfficeUpdater::Office2016Update::performUpdateScenario","OfficeUpdater.exe","6412","Informational"
What happens is that an office application is running or a file that belongs to an office application is in use when the Update is started. This includes Office365 telemetry. Patch Management provides the updates to the ClickToRun service and initiates the update, but it is unable to update immediately.
Microsoft has a process in place to handle this situation. Every PC with Office 365 installed has a scheduled task called "Office Automatic Updates" that will try to finish the update process on a schedule.
Here is "Administrative Template files": https://www.microsoft.com/download/details.aspx?id=49030
Checked both possible configuration setting: UpdateDeadline="04/118/2019 09:20" - Exact date time UpdateDeadline="3" - Days count
After deadline time the notification message with countdown timer will popup and user can defer it, if not ready to close the Office application(s). Otherwise, the application(s) will be closed, and after update process opened in last state.
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