Sharing allows users to give other users or groups access to specific information.

A good practice is sharing only the necessary objects among the smallest set of users possible.

Private objects
The owner of an object can choose to mark the object as Private. An object that is marked as Private can be accessed only by the user who created the object and by those who share the object (for example other Users added to this User's private Group).

Sharing Editor

For objects that support sharing you can right click and select from the context menu the "Sharing" command (Ctrl+R)

Private: object can be accessed only by the owner or users in the private group of the owner

Public Read Access: everyone can access the object but only the owner can modify

Public Read/Write Access: everyone can access and modify the object

Advanced: Custom sharing

By checking the "Save as default for the current Entity type" the application will use the currently selected access control settings whenever a new object of this type is created. This is a per User information.