# Customize Processing

After you have checked how your data is extracted and indexed into IDOL, you can customize CFS to process the data more effectively. You might want to add custom fields to your documents, or remove fields that do not contain useful information. You can also manipulate documents, for example you could use the subject of an e-mail message to populate the document title.

## Use Document Fields to Control Processing

You can add fields to a document to customize how CFS processes the document. For information about the fields that you can use to control processing, see Document Fields that control Processing.

## Run Import Tasks

Import Tasks are customizable processing tasks that you can run on documents before they are indexed into IDOL Server. You can use these tasks to write documents to disk, manipulate documents, reject documents, or run custom Lua scripts.

## Write Lua Scripts

You can write Lua scripts to perform advanced processing.

Related Topics

- Enrich Your Content

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