Your solution may be configured to leave copies of documents in SharePoint after they have been archived to OnBase. This configuration lets you archive a document to OnBase at different points during the document's development.
If a document has been archived to OnBase, it contains a LastArchiveDate property indicating the date and time that the document was last archived. You can view this property by choosing View Properties from a document's drop-down menu. If you are a SharePoint administrator, you can add the LastArchiveDate column to the library's view, allowing users to quickly see the property's value on each document in the library. The property is blank on documents that haven't been archived to OnBase.
If a document is removed from SharePoint upon archival to OnBase, the document link that remains in the library cannot be archived into OnBase. If the document link is deleted from the library, the document remains available in OnBase.