EDI usually arrives as an ultimatum: a major retailer or 3PL mandates it, with chargebacks for non-compliance. The decision then isn't whether but which model — a fully managed EDI service that owns your trading-partner maps and onboarding, or a self-service platform where your team controls (and maintains) the maps.
All providers below have production NetSuite integrations. The differentiators that show up a year in: how fast new trading partners onboard, how chargeback-causing errors surface, and whether EDI documents post as proper NetSuite transactions with your custom fields intact.
Does NetSuite support EDI natively?
No — NetSuite provides the APIs and transaction model, but no built-in EDI translation, VAN connectivity or trading-partner map library. That's normal: EDI is effectively always delivered through a specialist provider or integration platform. The native question for NetSuite is different: does the provider post EDI documents as first-class NetSuite records (sales orders, fulfilments, invoices) with correct item and location mapping, or park them in a middleware queue your team babysits?