Use this page to find the right fix fast.
A Biscuits bundle does not hold its own stock. Its availability is inherited from the required component products inside it, and the bundle parent product is never inventory-tracked. So when a bundle looks sold out, the cause is almost always a component product or a store setting, not the bundle itself.
Find the symptom that matches what you are seeing:
1. Sold out for every customer, as soon as the page loads
The Add to Cart button shows Sold Out for everyone, with no red error message above the form.
Go to: Bundle displaying sold out
2. Sold out only for some customers, or only in some countries
It works for you, but a customer in another market reports it as sold out. You can test this by adding ?country= to your bundle URL, or by switching the market context in the theme editor.
Go to: Sold out for some customers (Markets, Locations, Shipping)
3. A red or salmon coloured error message on the bundle form
For example "This bundle is sold out", or "The bundle product cannot be $0".
4. An error after clicking Add to Cart, or a greyed-out or missing button
For example "cannot be added to cart", "already sold out", "cannot find variant", or the button looks faded.
Still not sure? Open the bundle in the theme editor. It shows a detailed reason for any sold-out state. See Bundle form errors for what each message means.
To understand why bundles behave this way, see How does inventory work with Product Bundles?.