> For the complete documentation index, see [llms.txt](https://penida.gitbook.io/big-digital-download/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://penida.gitbook.io/big-digital-download/miscellaneous/license-key-how-to-generate-a-license-key-automatically-for-a-digital-product.md).

# LICENSE KEY • How to generate a license key automatically for a digital product?

{% hint style="success" %}
When you attach a file (by going to the Digital Products tab), there is a checkbox to generate a unique and random license key for each purchase. **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 %}

<figure><img src="https://505444084-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F6E2RYbkHaFzNulwI9D72%2Fuploads%2FwjVgbDFwpn6fMK51QT9M%2Fimage.png?alt=media&amp;token=a209b2d6-8922-4e9d-b233-34ca73ba628c" alt=""><figcaption></figcaption></figure>