Shipping Region Rules enforce stricter controls on how customers can modify shipping addresses. We added validation logic that prevents customers from changing their address to regions that conflict with Shopify order settings. This is for merchants who need to maintain shipping profile integrity and prevent address changes that break fulfillment workflows. Customers can no longer override shipping information that would create order processing issues. It reduces fulfillment errors, prevents shipping to unsupported regions, and keeps address changes aligned with your shipping strategy.
