Adding SKUs sold exclusively through bundles

To add individual product SKUs that are only sold as part of a bundle, go to your Shopify admin and find the product that will be part of your bundle. Then select Sales channels and apps and uncheck Online Store to hide the individual product.

Following this change, you'll notice that the product is no longer available or searchable on your storefront.

When your customers order the bundle that the product belongs to, you'll see on your Shopify admin that the individual product SKUs were successfully added to their orders.