Hi,
let us assume that you have write permissions (not full control) to a network share, you start robocopy without copying ACL and Attributes (/COPY:D, /DCOPY:D) and nevertheless robocopy exits with ACCESS DENIED. robocopy requests a lot of permissions:
Desired Access: Generic Read, Write Data/Add File, Write EA, Write Attributes, Delete, Write DAC
Disposition: OpenIf
Options: Directory, Synchronous IO Non-Alert, Open For Backup
Attributes: DA
ShareMode: None
AllocationSize: 0