> For the complete documentation index, see [llms.txt](https://docs.platter.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.platter.com/resources/faqs/why-are-the-checkout-extension-buttons-greyed-out.md).
# Why are the checkout extension buttons greyed out?
If the checkout extension buttons are greyed out in Platter+, it means that checkout extensions are not currently available for your store.
## **Why is this happening?**
Checkout extensions require **Checkout Extensibility**, which is **only available to Shopify Plus stores**. Additionally, Platter+ checkout extensions are only accessible to merchants on the **Pro plan**.
## **How to Enable Checkout Extensions**
To use checkout extensions in Platter+, you must:
1. **Be on Shopify Plus** – Checkout Extensibility is only available for Shopify Plus stores.
2. **Upgrade to the Platter+ Pro Plan** – Checkout extensions are a Pro feature.
If your store meets these requirements and the buttons are still greyed out, try refreshing your Shopify Admin or reach out to our support team for assistance.
For more details on Shopify Plus and Checkout Extensibility, visit Shopify's official [Checkout Extensibility documentation](https://shopify.dev/docs/api/checkout-extensions).
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