Sometimes, the usage of certain dropdown values is discontinued. E.g. collection container, specimen type, etc.
From v6.2, it is possible to “archive” the drop-down values which are no longer in use.
The archived value does not appear during data entry for new records but is not erased from the previously collected data. It is also available in reporting.
The archived value can be searched by selecting the activity status as ‘Archived’ in the search filter and reactivated by clicking ‘Reactivate’.
For more details refer: https://openspecimen.atlassian.net/wiki/x/bYDEAw