# LICENSE KEY • How can I be sure a license key won't be used twice?

{% hint style="success" %}
When an order is placed, we assign 1 key to 1 order. This key won't be assigned again (unless you want so). **Just make sure you follow the guide below to properly tag and assign license keys**
{% endhint %}

{% content-ref url="/pages/2fGeAWWolt12QngPY0c0" %}
[How to configure and sell license keys?](/big-digital-download/most-asked-questions/how-to-configure-and-sell-license-keys.md)
{% endcontent-ref %}


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