Is the new line item in a PO synced to Xero if the initial PO has already been synced? Yes, it will be synced in the same PO when synced to Xero. The bill will be updated in Xero. Related articles How does Price Sync work for Amazon? Xero Error: The invoice that needs to be voided does not exist in Xero anymore. If I change the Ship From Location in ShipStation, will it sync back to QuickBooks Commerce? How do I create a Custom Ledger Account with QuickBooks Online? How do I sync orders that are only shippable to ShipStation?