We built the onboarding flow inside NetSuite so vendors could submit once, finance could review in one place, and approved vendors could land as real Vendor records without rekeying.
Vendors get a branded link to an external registration page. They fill in company info, physical and remittance addresses, banking, payment terms, and upload the right tax document (W-9, W-8BEN, or W-8BEN-E), plus anything else the team needs. If the invite is for an international vendor, the form asks for the international banking fields; domestic gets the ACH/wire fields. It looks like the client’s portal (logo, colors, company name), not a generic NetSuite screen.
From NetSuite, AP can pick Domestic or International and email the link straight to the vendor. Submissions don’t immediately create a live Vendor. They go to a staging record in pending review, with documents saved in the File Cabinet and tied to that request. Finance approves or rejects from there.
Approved requests create the Vendor, map the main fields, attach the uploaded files, and send the vendor a confirmation. Rejected requests capture a reason and email it back so the vendor isn’t guessing what to fix. If they want an update before then, they can check status from the portal with the email they used to apply.