# Special Codes

Discovery is designed to handle all types of conversations on your site, including with visitors interested in a promotion, who belong to a group, or have other codes to put to use.

<table data-view="cards"><thead><tr><th></th><th data-hidden data-card-cover data-type="files"></th></tr></thead><tbody><tr><td>Planners enter their code into Discovery, or it's passed in automatically.</td><td><a href="/files/q2qdLTqgGsknnN7xFBoN">/files/q2qdLTqgGsknnN7xFBoN</a></td></tr><tr><td>Planners can view and edit their promotion or group code at any point.</td><td><a href="/files/iIGgaXCKGktk8O6Xiiwn">/files/iIGgaXCKGktk8O6Xiiwn</a></td></tr><tr><td>If planners don't complete their booking, their code is saved to their plan when returning.</td><td><a href="/files/jjTmARXWDHP6LjOqz1aZ">/files/jjTmARXWDHP6LjOqz1aZ</a></td></tr></tbody></table>

## Support for special codes is easily configured

{% stepper %}
{% step %}
**Sign into your account and head to Mission Control → Booking.**

Scroll down to the details for Special Codes.

<figure><img src="/files/TuJkIsZjCGPSBGQZSSJQ" alt=""><figcaption></figcaption></figure>
{% endstep %}

{% step %}
**Configure your code types.**

Add the code type you want to support, rename it if you prefer, and save.

<figure><img src="/files/zWuWd19CRJ5k65a0HZD0" alt=""><figcaption></figcaption></figure>
{% endstep %}

{% step %}
**Switch on.**

Planners will now be able to manually enter a code in Discovery.

<figure><img src="/files/Cxxgm7mHXprfSvreG1X2" alt=""><figcaption></figcaption></figure>
{% endstep %}
{% endstepper %}

## Passing codes in automatically

There are two ways Discovery passes special codes, out-of-the-box:

First, Discovery detects if a booking link contains additional parameters for a promotion or group code.

Alternatively, Discovery also detects special codes on any triggers where [website markup](/docs/integrations/websites/website-markup.md) has been added.

Either way, the code will automatically pass in to the booking engine so it **just works**.

For more on this feature, or to switch on, [head over to your account](https://manage.flip.to/home), or say hello to the Flip.to team.


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