> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://support.postcodeshipping.com/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# I can’t select Postcode Shipping in the Shopify Shipping settings, it’s grayed out

If you can’t select Postcode Shipping in the Shopify Shipping settings because it's it’s grayed out, it means that you've already set it up for that particular zone. 

![](https://storage.crisp.chat/users/helpdesk/website/7ca8b3cc1d2b7c00/image_1bsc2yt.png)

Once the option has been set, it'll automatically be grayed out in Shopify. To confirm it's set up, go back to your zones list and verify that the app is listed:

![](https://storage.crisp.chat/users/helpdesk/website/7ca8b3cc1d2b7c00/image_1lksf3.png)