> ## 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
At the end of your rollout rules queue, there's a dropdown list that defines which variation Kameleoon will deliver to users that are not targeted by any rule.
* **Example 1:** If you want to roll out a new feature to 10% of your audience, Kameleoon will deliver 90% of users this default variation.
* **Example 2:** If you have two delivery rules running with each targeting 40% of your total audience, the remaining 20% will receive this default variation.
The default variation is automatically set to the **Off** variation; however, you can change which variation appears by default. Changing the default variation has no effect when your flag is turned off.
## Manual Toggle
The manual toggle is the primary method of controlling your flag's state (on or off).
When your feature flag toggle is turned **on**, Kameleoon will evaluate all delivery and experiment rules you've defined in the rules queue. However, while **off**, no delivery rules will be evaluated.