What is Access Control Setting?

You can control access to folders in the common space on an account or group basis.
The following six types of access modes are available:

アクセスモード	説明
Read/Write	The following operations are allowed: - List files/folders - Download files/folders - Upload files/folders - Create new folders - Move files/folders - Copy files/folders - Delete files/folders - Edit comment on files/folders
Read/Write(File Only)	The following operations are allowed: - List files/folders - Download files/folders - Upload files - Move files - Copy files/folders - Delete files - Edit comment on files/folders
Read/Write(unable to modify action*2)	The following operations are allowed: - List files/folders - Download files/folders - Upload files/folders - Create new folders - Move files/folders - Copy files/folders - Delete files/folders
Read/Write (File Only/unable to modify action*2)	The following operations are allowed: - List files/folders - Download files/folders - Upload files - Move files - Copy files/folders - Delete files
Read Only	The following operations are allowed: - List files/folders - Download files/folders - Copy files/folders*1
No Access	Unable to view files or folders, thus resulting in no access. Unable to access error message will appear if a specific URL address is entered in a web browser.

*1 ：	Requires Read Only access on source folder and Read/Write access on destination folder.
*2 ：	Revision settings cannot be carried out when an access mode that does not allow actions to be modified is set.

"No Access" occurs when neither "Read/Write" nor "Read Only" is set. If you want to assign "No Access" to an account or group, you need to separate the account/group and assign different sets of access control.
By default, the pseudo group "everyone" has Read/Write access to the Top folder. Subfolder inherits parent's access control settings unless changed manually.
If the account belongs to multiple groups with conflicting settings, Read/Write takes precedence.

We use the figures below to cite an example:

Account Management		TOP	F-A	F-A-1	F-B	F-B-1	F-B-2
Group A		o	o	Δ	x	x	x
	Account a	o	o	o	o	o	Δ
	Account b	o	o	Δ	x	x	x
	Account c	o	o	Δ	x	x	x
Group B		o	o	Δ	o	o	Δ
	Account d	o	o	Δ	o	o	o
	Account e	o	o	Δ	o	o	Δ
	Account a	o	o	o	o	o	Δ
Group C		o	o	o	o	o	o
	Account f	o	o	o	o	o	o
	Account g	o	o	o	o	o	o
	Account h	o	o	o	o	o	o

o : Read/Write    Δ : Read Only    x : No Access

By default, pseudo group “everyone” has “Read/Write” to the Top folder. All users have “Read/Write” access, as a result.

Folder F-A has no access control set and thus inherits the setting from the Top folder. For folder F-A-1, Group A and Group B have “Read Only”, whereas Group C has “Read/Write”. Account A is an exception and has “Read/Write” access. Account A is individually assigned “Read/Write” access even though the account belongs to both Group A and Group B.

For folder F-B, Group B and Group C have “Read/Write”. Group A has no setting explicitly set and therefore has no access. Account A, however, has “Read/Write” access since the account belongs to Group B. Folder F-B-1 has no access control set and thus inherits the setting from F-B. For folder F-B-2, Group B has “Read Only”, and Group C has “Read/Write”. Even though Account D belongs to Group B, the account has “Read/Write” due to the individually assigned access setting.