Using NetSuite Connector for Data Migration
For certain connectors like Magento, NetSuite Connector offers add-ons like Magento-to-NetSuite Product Sync. The services provided by NetSuite Connector are intended to be used as ongoing syncs. Most NetSuite Connector processes run many times a day.
NetSuite Connector order sync processes are not intended to be used to do a one-time sync of months' worth of past orders. You can request NetSuite Connector to temporarily import even closed orders for the past 30 or 60 days. You should not import more than 2000 orders through NetSuite Connector because doing so will significantly slow down your order sync processes.
One-time data migration between systems should not be done using NetSuite Connector. Such migration should be handled through CSV file import and export or other means provided by NetSuite and your marketplace or cart.