# Control Flow Brick Output

There are two behaviors to know about how output works in Control Flow bricks:

1. The Control Flow brick outputs the value of the final brick it ran that has an Output Key
2. The Output/Output Key of a brick within a Control Flow brick is only available to the subsequent bricks within the same branch/body. It is not available outside of the Control Flow brick or inside the other branches

If you need the Control Flow brick to output a brick other than the final brick, currently the best way to do so is using the [jq - JSON Processor](https://www.pixiebrix.com/marketplace/f8fbc031-2ae5-4cda-aa47-0ec3befd4c8a/jq-json-processor/) brick.

Provide the following inputs:

<table><thead><tr><th width="170">Input</th><th>Value</th></tr></thead><tbody><tr><td>filter</td><td><code>.</code></td></tr><tr><td>data</td><td><code>@key</code> of the data you want the Control Flow brick to ouput</td></tr></tbody></table>

<figure><img src="/files/8RWpQjZyt8f8GSIBAAdM" alt=""><figcaption></figcaption></figure>


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