Amazon, eBay & Etsy
Why this matters for your business
Amazon, eBay, and Etsy together cover most of the "non-Shopify shopper" universe. Customers who trust Amazon above all else; vintage/handmade buyers who live on Etsy; deal-seekers + niche enthusiasts on eBay. Each has 50M+ active US buyers. Selling on all three meaningfully expands your TAM.
But each is its own challenge:
- Amazon: strict listing rules, ASIN matching, MAP pricing, Buy Box dynamics, FBA vs. FBM tradeoffs
- eBay: auction vs. fixed-price decisions, category attribute requirements, Best Offer
- Etsy: unique-item culture, vintage authentication, variation handling
The platform makes all three approachable: connect via OAuth, auto-map your Shopify catalog to each marketplace's requirements, sync inventory + pricing in real-time, import orders back to Shopify.
What this typically unlocks
| Outcome | Result |
|---|---|
| Time to launch on each | 2-4 hours vs. weeks manual |
| Inventory accuracy | near 100% (real-time sync) |
| Order management overhead | low (orders flow back to Shopify) |
What you actually get per channel
| Channel | Setup | Sync | Special features |
|---|---|---|---|
| Amazon | OAuth via Seller Central | Inventory hourly, price 5-min | ASIN matching, FBA support, Buy Box monitoring |
| eBay | OAuth via developer account | Inventory + price every 15 min | Auction or fixed-price modes, Best Offer handling |
| Etsy | OAuth | Inventory hourly, price daily | Variation mapping, vintage attributes |
Real merchant scenarios
Scenario A — Brand launches Amazon — finds it's 30% of revenue
Setup. $2M Shopify-only brand. Launched Amazon as experiment.
90-day result:
- Amazon revenue: $640K (annualized)
- Amazon's share of total: 30%
- Inventory accuracy: 99.7% (3 oversells out of ~6,000 orders)
- Time spent on Amazon ops: ~2h/week
The 30% revenue contribution justified the work many times over. Brand is now multichannel-first.
Scenario B — Etsy unlocks niche buyers
Setup. Brand sold artisan home goods. Tried Amazon — low fit (their buyers value craft, not deals). Tried Etsy.
Result: Etsy revenue $14K/month after 3 months. Higher margin than Amazon (Etsy fees lower; buyers willing to pay premium). Etsy reviews drove organic Shopify traffic.
Scenario C — eBay clearance strategy
Setup. Brand used eBay for end-of-season clearance — slower sell-through but better margin than discounting on own site.
90-day result: $32K in clearance revenue at 22% better margin than equivalent Shopify discount. Cleared inventory for new season.
Best practices
✅ Start with Amazon for volume, Etsy for niche, eBay for clearance/specialty.
✅ Map carefully. Marketplace categories and attributes matter — wrong category = no visibility.
✅ Watch the Buy Box on Amazon. Tools to win it (price, fulfillment speed) compound.
❌ Don't list everything on every channel. Curate per- channel — your bestsellers may not sell on Etsy and vice versa.
❌ Don't rely on manual inventory. Real-time sync is critical to avoid oversells.
Plan tiers
| Capability | Free | Starter | Pro | Agency | Enterprise |
|---|---|---|---|---|---|
| Amazon connect | — | ✓ | ✓ | ✓ | ✓ |
| eBay connect | — | ✓ | ✓ | ✓ | ✓ |
| Etsy connect | — | ✓ | ✓ | ✓ | ✓ |
| Real-time inventory sync | — | ✓ | ✓ | ✓ | ✓ |
| Order import | — | ✓ | ✓ | ✓ | ✓ |
| FBA + FBM management | — | — | ✓ | ✓ | ✓ |
| Buy Box monitoring | — | — | ✓ | ✓ | ✓ |
| Multi-shop marketplace | — | — | — | ✓ | ✓ |