Instances of AutoFill Keyword Sets can automatically be created using data applied to a document from a batch Advanced Capture process if the associated scan queue has the Store Keyword Set Data option enabled. AutoFill Keyword Set data is only stored for documents that are indexed correctly and marked as fully-indexed; AutoFill Keyword Set data is not stored for any document that is unidentified or has any values marked as suspect.
AutoFill Keyword Set information cannot be stored for any document indexed via an ad hoc Advanced Capture process because the document does not have a connection to a scan queue and, therefore, the Store Keyword Set Data scan queue option.