A retention policy blocks permanent deletion of content for a specified amount of time. Admins can create retention policies and then assign them to specific folders or their entire enterprise. Retention policies can be used to keep data for as long as is needed, and then automatically delete the content permanently when the data can no longer be legally held.
Working with Retention Policies requires a developer to work with three distinct resources.
- Policies: A Retention Policy describes the general behavior of the retention policy. It determines how long a retention should stay in place, if it can be extended, and what happens when the retention policy ends.
- Assignments: A Retention Policy Assignment is a relation between a policy and folder or enterprise. Creating an assignment puts a retention on all the file versions that belong to that folder or enterprise. For example, if an assignment is created on a folder the policy is applied to all file versions within that folder.
- Retentions: A File Version Retention represents all the policies that are assigned to a specific file version. Note that every file version can have a maximum of one file version retention and that this resource contains a list of every assigned policy.
Files under retention can be deleted from folders, but they will be retained in the trash until the retention expires. When the retention expires, you can choose to have the content automatically deleted or for the policy to be removed.
Before using any of the Retention Policy APIs, an application must have the GCM and Manage Retention Policies scopes enabled. These are not available in the Developer Console and need to instead be enabled by contacting customer support.