> ## Documentation Index
> Fetch the complete documentation index at: https://docs.kameleoon.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Turn your feature flag on or off

> Toggle your feature flag on or off and configure the default variation served to users not targeted by any rollout rule.

You can turn your feature flags on or off.

## Choosing a default variation

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  <img src="https://storage.googleapis.com/kameleoon-storage-documentation/user-manual/images/experimentation/feature-experimentation/using-the-rollout-planner/turn-your-feature-flag-on-or-off/0.png" alt="Default variation dropdown at the end of the rollout rules queue" style={{width: "100%"}} />
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At the end of your rollout rules queue, there's a dropdown list that defines which variation Kameleoon delivers to users that aren't targeted by any rule.

* **Example 1:** If you want to roll out a new feature to 10% of your audience, Kameleoon delivers this default variation to 90% of users.
* **Example 2:** If you have two delivery rules running with each targeting 40% of your total audience, the remaining 20% receive this default variation.

Kameleoon automatically sets the default variation to the **Off** variation. However, you can change which variation appears by default. Changing the default variation has no effect when you turn your flag off.

## Manual toggle

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  <img src="https://storage.googleapis.com/kameleoon-storage-documentation/user-manual/images/experimentation/feature-experimentation/using-the-rollout-planner/turn-your-feature-flag-on-or-off/1.png" alt="Manual toggle for turning a feature flag on or off" style={{width: "100%"}} />
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The manual toggle is the primary method of controlling your flag's state (on or off).

When you turn your feature flag toggle **on**, Kameleoon evaluates all delivery and experiment rules you've defined in the rules queue. However, while **off**, Kameleoon doesn't evaluate any delivery rules.