The Commercium blog

Sell everywhere. Learn everything.

Playbooks, product updates and marketplace intelligence for teams running commerce across every channel.

How to sync inventory across Amazon, eBay & Shopify without overselling

Overselling quietly wrecks your marketplace metrics and your margins. Here is the exact real-time setup that keeps every channel accurate.

The 2026 fulfilment fee adjustments hit low-price and bulky items hardest. Here is what changes and how to protect your margins.