We agree 100% with the suggestion and are exploring ways to enable this. This represents a significant amount of engineering work hence we don’t have a schedule to share yet.Oleg Kozlovskii commented
Same issue - a vendor with a private account, I'm with business. We cannot share files through OneDrive. Microsoft reminds me of the worst bureaucracies of the USSR - the simplest most obvious functions are not performed and things that can be fixed in two days of coding are going unattended for years. Do something about it!