Troubleshooting: Bundle Upsells not showing
If your bundle upsells aren't appearing on your checkout page or product detail page (PDP), this guide walks through the most common causes and how to fix each one.
For the full setup guide, see How to set up bundle upsells in Simple Bundles.
1. I enabled upsells but the block isn't showing on my storefront
Enabling upsells in Simple Bundles settings is not enough on its own; you also need to add the corresponding block(s) directly in your theme:
- Add the Bundle upsell - Checkout block via Online Store > Themes > Customize > Checkout
- Add the PDP Bundle Upsell app block to your product template
Check both locations even if you only want one of the two to show. The Upsells page in Simple Bundles shows block status for both, so it's worth confirming which one(s) are actually placed in your theme before assuming the feature itself is broken.
2. My upsell isn't showing for an Infinite Options or BYOB bundle
- Checkout upsells only work with Simple Bundle types. Infinite Options and BYOB bundles cannot be shown as upsells at checkout.
- PDP upsells currently support both Simple Bundle and Infinite Options.
If you're not seeing an upsell at checkout for a product that belongs to an Infinite Options or BYOB bundle, this is expected; that combination isn't supported at checkout today.
3. My upsell shows on some products but not others
Upsells appear when a cart item is a component of a bundle, not when the bundle itself is already in the cart, and not just because a product happens to be a bundle parent.
If your product is only sold as a standalone bundle parent (and isn't also used as a component inside another active bundle), no upsell will appear for it. If a product belongs to more than one bundle, only bundles where that product is a component will be considered as upsell candidates; a bundle where the product is the parent (but not a component elsewhere) won't be suggested.
4. My bundle isn't showing because a component is out of stock
For a bundle to appear as an upsell suggestion, all products included in that bundle must have available inventory. If any product in the bundle is out of stock or has zero inventory, the bundle will not be shown to customers.
If you're not seeing bundle suggestions and you've confirmed the product belongs to an active bundle as a component:
- Check that every product in the bundle has available inventory in Shopify.
- Make sure the bundle itself is set to Active status in Simple Bundles.
- If you recently restocked, allow a few moments for inventory to sync, or use the Sync Now button on the Upsells page.
5. I just made changes to my bundles, and the upsell hasn't updated yet
When you first enable bundle upsells (or make changes to your bundles), Simple Bundles needs to sync that data before it can appear as a suggestion.
Click Sync Now on the Upsells page and check the status message:
- For most stores, this completes within a few minutes.
- For stores with 1,000+ bundles, the initial sync can take 10-15 minutes.
If the status message says syncing is still in progress, wait a bit longer and check again before troubleshooting further; the upsell may simply not be live yet.
6. My upsell block looks cramped or awkward in a narrow space
If the upsell block is placed in a narrow area of your product page (for example, a sidebar or tight layout section), the default display style may not have enough room to look clean.
Tip: Try switching the Display Style to Carousel, and set Maximum bundles to show to 1. This keeps the block compact and avoids the cramped or stacked appearance that can happen when multiple bundle suggestions are squeezed into a narrow space.
If you're already using Carousel but still seeing an awkward layout, check your Maximum bundles to show setting, a higher number (e.g., 3) can still look crowded in a narrow space even with Carousel enabled. Lowering it to 1 is often the fix.
Need help?
Still not seeing your upsell after going through above? Contact Simple Bundles support at hello@simplebundles.io. We're happy to help!