# Change Category Fields

Use the `CategorySetDetails` action to set the value of one or more category fields, or to create new fields in a category.

By default each category has a threshold of 0 and is set to return six results. Use the `CategorySetDetails` action fields `THRESHOLD` and `NUMRESULTS` to set the threshold and the number of results that a category can return. For example:

    action=CategorySetDetails&Category=124365780934532&Fields=THRESHOLD,NUMRESULTS&Values=60,10&BuildNow=True

In this example, the IDOL Category component sets the `THRESHOLD` field of the category with the ID `124365780934532` to `60` and its `NUMRESULTS` to `10`. The `BuildNow` parameter instructs Category to build the categories immediately, so that they become active. You can also activate the category at a later point by using the `CategoryBuild` action.

Related Topics

- Build Categories

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