How do I keep prices and inventory accurate across multiple sales channels?

Keep one authoritative inventory and pricing source wherever possible, and synchronise channels from it using stable product and variant identifiers. Define how quickly updates need to propagate and what happens when a marketplace or integration is delayed. Avoid manual changes on individual channels unless the workflow writes those changes back to the source of truth. Monitor for mismatches and overselling. Prices, stock and availability are high-trust data: they must stay current for customers, feeds and AI shopping agents to act reliably.