Open topic with navigation

# Build Categories

You can use the `CategoryBuild` action to build a category. You must build a category after you create it and train it, as well as every time that you retrain it. Building a category identifies the concepts of the training for the category and indexes the category into the IDOL Server category index. For example:

    action=CategoryBuild&Category=32349987602210557106

In this example, IDOL Server builds the category with the ID `32349987602210557106`.

Note: If you train or retrain a category by using the `CategorySetTraining` action with `BuildNow` set to `True`, you do not have to run a `CategoryBuild` action, because the category was built immediately after it was trained.

IDOL Server also builds categories immediately if you assign training parameters to the `CategoryCreate` action to train a category when you create it.

© 2016 Hewlett Packard Enterprise Development LP | Send documentation feedback to HPE Close We welcome your comments! To open the configured email client on this computer, open an email window. Otherwise, copy the information below to a web mail client, and send this email to AutonomyTPFeedback@hpe.com. Product: Topic Title: Help Topic: Feedback:

_HP_HTML5_bannerTitle.htm