Managing bundles
Stock and Automatic Pause
When a product in one of your bundles sells out or is deleted, the app pauses that bundle automatically. This keeps discounts from applying when the bundle can't be fulfilled.
#Automatic pause on stock-out
When Shopify reports that a component product has sold out, the app pauses every active bundle that requires that product. The widget stops appearing on the storefront and the discount no longer applies at checkout.
This applies to Fixed Bundle, BOGO, Buy X Get Y, Volume Discount and Mix & Match bundles. Draft and Scheduled bundles are not affected, only Active ones.
What triggers it. A bundle pauses when a component's stock reaches zero and the product is set to stop selling when out of stock in Shopify. Products set to continue selling at zero stock don't trigger a pause.
Mix & Match. A Mix & Match bundle only pauses if available options inside a group drop below that group's required minimum. A group with many options can absorb several going out of stock as long as enough remain for a shopper to complete it.
The pause lands within a few minutes of the last unit selling.
#Automatic resume
When the product is back in stock, the app re-checks every component of the bundle, not just the one that returned, and resumes only when everything it needs is available. The widget re-appears and the discount applies at checkout again.
The app only resumes bundles it paused itself. If stock returns but your bundle doesn't resume, check that you haven't also paused it by hand.
An hourly sweep also catches cases where stock returned without a direct notification from Shopify, for example if you turned inventory tracking off on a component or changed a product from "stop selling" to "continue selling."
#How you see it
When the app pauses a bundle for stock, the bundle shows Paused in the bundle list, the same as if you had paused it yourself. To tell the two apart, open the bundle: if stock has since returned, the bundle may have already resumed. If not, activate it manually.
#Untracked inventory
If a component's inventory is untracked in Shopify, or is set to keep selling when out of stock, the app cannot pause the bundle when that component hits zero. Inside the bundle editor, a warning headed "Stock is linked, but nothing can trigger it" lists the affected products by name:
This warning appears on bundles with Bundle as product on and In the cart set to Keep the bundle together, because those bundles depend on Shopify's own stock tracking to gate the product page. To protect those bundles, turn on inventory tracking for each component in Shopify and set it to stop selling when out of stock.
#Deleted products
If a product is deleted from your Shopify store, any Active or Scheduled bundle that contained it is paused immediately. Opening that bundle shows a banner:
Unlike a stock-out pause, a deleted-product pause does not auto-resume. There is nothing to restock. Open the bundle, replace or remove the missing product, save, and then set the bundle back to Active.
#How this relates to Enable stock validation
Settings > General > Enable stock validation controls what shoppers see on the storefront. When it is on, the Add to cart button in the bundle widget is disabled whenever any component is out of stock, but the widget still appears on the page.
Automatic pause works at the bundle level. It removes the widget from the storefront entirely and switches off the discount, regardless of the Enable stock validation setting.
Automatic pause is always on; there is no setting for it. Stock validation covers the gap before a pause lands and cases automatic pause can't reach, such as a variant a shopper picks that is out of stock while the bundle overall is still sellable.
#Common mistakes
Expecting a manually-paused bundle to auto-resume. Auto resume only applies to bundles the app paused. If you paused a bundle by hand and then restocked it, set it back to Active yourself.
Thinking a deleted-product pause will clear itself. Deleting a product in Shopify is permanent. The bundle stays paused until you open it, add a replacement or save without the missing product, and set it back to Active.
Components set to continue selling. A product set to "Continue selling when out of stock" in Shopify won't trigger a pause, and the widget stays visible even when the product can't be fulfilled. Check the inventory settings for each bundle component in Shopify.