UiPath versus O365 - UNC versus HTTPS

Dear all,

I’m looking for some best practice advice when it comes to using UiPath in combination with O365.

A little more information about my robot. He extracts excel data from one export file and adds it to various excel files.
To make it more difficult, the excel files (export file and target files) are stored on an O365 site.

Right now I used the Excel application scope action in combination with a UNC path. I was wondering if this could be the reason why the robot crashes most of the time.

My question: is a UNC path fine or should I use an HTTPS path in combination with the Excel Application Scope?

Kind regards