> For the complete documentation index, see [llms.txt](https://duos-b2b-documentation.gitbook.io/duos-b2b-wholesale/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://duos-b2b-documentation.gitbook.io/duos-b2b-wholesale/onboard/features-on-checkout-are-unavailable-on-non-plus-plans.md).

# Features on checkout are unavailable on non-Plus plans

Some features in Duos B2B rely on Shopify's Checkout Extensibility — a native Shopify capability that is only available on Shopify Plus. If your store is on a Basic, Grow, or Advanced plan, the following features will not be active:

* **Block checkout by customer permissions** — prevents buyers from completing checkout if they do not have the required permission role assigned.
* **Block checkout by available credit limit** — prevents buyers from placing orders that exceed their assigned credit limit at checkout.

These features will appear as disabled. No action is required on your end.

**What still works on non-Plus plans**

This limitation only affects checkout-level enforcement. All other features remain fully available:

*For customer permissions:*

* Buyers can still create, edit, and delete team members
* Permission-based restrictions on actions across the app remain fully enforced, including Quote Request, Quick Order (CSV & SKU), and Shopping List
* Only the ability to block a Junior Buyer from completing checkout is unavailable on non-Plus plans

*For credit limit:*

* Assigning and editing credit limits per company
* Increasing or decreasing limits based on order activity
* Credit tracking and reporting 

**Why this happens**

Shopify restricts access to Checkout Extensibility — the technology that allows apps to add logic inside the checkout flow — to Shopify Plus stores only. This is a Shopify platform constraint, not a Duos B2B limitation.

**Want to enable these features?**

Upgrade your store to Shopify Plus to unlock full checkout enforcement capabilities. Once upgraded, both features will become available in your Duos B2B settings automatically.