Making empty metadata fields searchable

How to index empty fields

1. In Index Manager Settings, open the Fields tab for the relevant index.
2. Select the fields you want to index as empty. 
3. Select Save.
4. The index must e completely rebuilt to make existing content searchable in empty fields. For more information, see Rebuilding an index.

Indexing empty fields

In many archives metadata is only entered in certain fields, leaving most fields empty. When configured to index certain empty fields, Index Manager creates an entry in the index called XNOWORD for these fields, allowing users to search for empty fields using this string. However, this increases the size of the index and, as a result, slows down searching in very large archives. We recommend only enabling the fields where empty search is required.