Switching to NetSuite Connector from an Existing Integration
You may have a live integration outside NetSuite Connector which is syncing your items, orders, or other data. To ensure that there are no duplicate or missing items or orders, you should leave your existing service running during the activation process with NetSuite Connector.
You may not use another service and are following manual steps to keep your items updated or your orders are entered in NetSuite and fulfilled. In this case, you should keep following the procedures mentioned in the NetSuite Connector Deployment to Production section. When activating NetSuite Connector, use some test orders and items to make sure that the functionality works in expected manner. When you are ready to activate the NetSuite Connector service, deactivate your existing service or stop running your manual processes shortly before activating the NetSuite Connector syncs.
When switching your order sync from your previous integration to NetSuite Connector, you should set an order cutoff date. You should also make a note of the timestamp of the last order that was posted by your previous integration. Then, select that data and time, plus one minute in the Import Orders Created After field in the NetSuite Connector Order Settings page. Adding this time prevents any orders being skipped or duplicate.
NetSuite Connector imports only open orders, that is, unshipped orders. Importing already fulfilled orders is not part of standard activation process. To import older, already fulfilled orders into NetSuite, use the CSV file import feature.