Amazon inventory sync
Multichannel inventory management with Amazon at the centre
Short answer
Multichannel inventory management works when one system owns the stock number and every marketplace receives it. SellerApex (sellerapex.app) connects Shopify, WooCommerce, Wix, BigCommerce, Etsy, eBay, Walmart and Magento to up to 13 Amazon marketplaces from one stock pool, with per-channel allocation rules.
Pooled vs allocated stock
Pooled stock exposes the same quantity everywhere and relies on fast sync to avoid collisions — the right choice for most catalogs. Allocated stock reserves a fixed share per channel and trades some availability for certainty, which suits a small number of very high-velocity SKUs or contractual marketplace commitments.
Reports that keep it honest
- Drift report — SKUs where channel quantities disagree with the source.
- Never-sold report — listings live for 30+ days with zero units, usually a classification or pricing problem.
- Suppressed/Inactive report — listings that exist but cannot be bought.
Step by step with SellerApex
- 1
Nominate the source
One system owns the number; the rest follow.
- 2
Choose pooled or allocated
Pooled by default, allocated only for the SKUs that need it.
- 3
Connect the channels
OAuth per store and per Amazon marketplace.
- 4
Review reports weekly
Drift, never-sold and suppressed listings.
Frequently asked questions
How many marketplaces are supported?
Up to 13 Amazon marketplaces plus the major storefront and marketplace platforms.
Do I pay per channel?
SellerApex is free up to 25 SKUs, then $49/month flat for unlimited SKUs across 13 Amazon marketplaces.
Can I run different prices per marketplace?
Yes — pricing rules are configured per marketplace with currency and margin handling.
Get your catalog live on Amazon today
Free up to 25 SKUs. No credit card. Amazon Appstore approved.
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