Option 1: sell singles with a quantity discount
Drop the pack variants, sell only the single, and add an automatic discount for buying 3 or more (Discounts → Amount off products, with a minimum quantity requirement). One variant, one count, nothing to sync. The cost: packs can't have their own photos or SKUs, and "3-pack" doesn't appear as an option customers pick.
Option 2: count everything in single units
Keep one count in singles and give each variant its units per sale: 1 for the single, 3 for the 3-pack, 6 for the 6-pack. Each pack then shows how many whole packs the singles cover, rounded down so it never shows a pack you can't fill.
- Single · 3-pack · 6-pack
- 120 · 40 · 20
- After a 3-pack sells
- 117 · 39 · 19
- With only 5 singles left
- 5 · 1 · 0
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.
- Open OneCount. If your pack option uses names like Single, 3-pack or Pack of 6, Suggested pools on the home screen has probably found it, with the units filled in. Click Create pool on it.
- Otherwise, click Create pool, select the single and every pack, and set Units used per sale to 1, 3 and 6.
- Start from the variant that holds your real stock, usually the single.
- Check the changes, then confirm.
Restock by editing any one variant: adding 30 singles or 10 three-packs adds 30 units either way. Typo a number? Press Undo next to it in the pool's activity list.
Packs sold as separate products
If "Socks" and "Socks – 3 Pack" are separate products, the same pool works across them. Suggested pools also matches products whose titles end in 3 Pack, Pack of 6, 12 ct and similar.