Option 1: Shopify's free Bundles app
Shopify's own Bundles app builds fixed bundles from products you already sell, and Shopify works out the bundle's stock from its items. It's free, and worth trying first if your bundles are simple.
Option 2: a bundle that follows its items
Some apps keep the bundle as a normal product and link it to its items: the bundle shows how many complete bundles you can make, and selling one takes its items. This suits bundles that are their own product, and stores where the same items are also sold in packs or in several bundles.
Setting it up in OneCount
Here's how it works in OneCount. Disclosure: we make it, so we're biased, but the steps above work without it.
- Create the bundle in Shopify as a normal product with Track quantity on. Its stock can start at 0.
- In OneCount, click Create bundle, then Select bundle and pick it.
- Click Select items and set how many of each go in one bundle, for example Mug 1 and Candle 2.
- Check the changes: the bundle shows how many you can make, and the items stay as they are. Confirm.
- Boxes you can make
- 4
- After a box sells
- Mugs 9, candles 7, boxes 3
- After a candle sells alone
- Candles 6, still 3 boxes
A refund that restocks the bundle puts its items back. To make more bundles available, restock the items, not the bundle.
Two things to avoid
- Using the same bundle in Shopify Bundles and OneCount: the items would be taken twice. OneCount won't accept a product Shopify already treats as a bundle.
- Leaving Continue selling when out of stock on, for the bundle or its items: it can still oversell. The health check warns you when it's on.