The Google for WooCommerce update dropped this week — AI-automated creatives now reaching 2.7 billion YouTube shoppers directly from your WooCommerce store. From a marketing perspective it's significant. From a backend perspective it introduces a problem most WooCommerce developers haven't thought about yet. The demand spike problem YouTube-driven traffic doesn't arrive gradually. A product featured in a well-performing ad or an organic viral moment can go from 10 orders a day to 500 in hours. That demand spike hits every channel simultaneously — WooCommerce, Amazon, Flipkart, marketplaces — all drawing from the same stock. If your inventory sync runs on a schedule — every 15 minutes, every hour — the spike creates a race condition between channels. A sale on WooCommerce at 2:00pm hasn't told Amazon by 2:14pm. Amazon sells the same last unit. You have two orders you can only fulfil one of.…