# <autn:categories> (required)

The `<autn:categories>` tag marks the beginning of the XML categories that the IDOL Category component reads. When you use the `CategoryImportFromXML` action, Category reads the XML between the opening and closing `<autn:categories>` tags.

All categories (`<autn:category>`) are children of (`<autn:categories>`) when you export a category from the IDOL Category component to XML. You can then import the XML to the IDOL Category component. They should have the same format.

You must include an XML namespace in the tag. For example:

    <autn:categories xmlns:autn="http://schemas.autonomy.com/aci">

Tag name | Number allowed | Required
--- | --- | ---
<autn:category> | one or more | No

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