You implement search interfaces in Developer Studio’s Search Interface editor.
Before implementing search interfaces, make sure that all the properties or dimensions that are going to be included in a search interface have already been enabled for record search.
If you are implementing wildcard search in a search interface, search interfaces can contain a mixture of wildcard-enabled and non-wildcard-enabled members (although only the former will return wildcard-expanded results).
After indexing the data with the new search interface, the new key may be used for record searches.