Deleting data from COmanage Registry turns out to be a surprisingly complicated issue. To start, it is first necessary to understand different types of delete operations.
Deactivation is currently supported in various places through Registry. Adjust the relevant records status to Suspended, Expired, or another appropriate value and the record will be deactivated.
As of v0.9.4, many (but not all) Delete operations are now Soft Deletes. (No undelete is currently available; CO-1104.) These are largely around People attributes, but also those involving Enrollment Flows and Enrollment Attributes. Future planned changes will introduce more Soft Delete capabilities (CO-95), including for Groups and configurations.
Note that Expunge is a Soft Delete operation. Deleting a CO is a Hard Delete operation.
See also: Deleting Registry Records