I'm having trouble backing up SDP to a network location. I keep getting access denied errors. Does anyone know which account needs access and which permissions are needed?

I have given servername$ full control permissions on the backup folder security settings but no luck. 

I found this link: https://pitstop.manageengine.com/portal/kb/articles/how-do-i-schedule-a-backup-over-a-network-share. But it doesn't specify which account needs access.

I also found this link: https://pitstop.manageengine.com/portal/community/topic/backup-to-network-share-in-sdp-7-6-0. But this indicates that I need to give full access to everyone on the backup location, which doesn't seem secure.

Thanks