Vendor onboarding is the process of getting a new supplier from signed contract to fully operational relationship — collecting tax and banking details, running required compliance checks, provisioning any system access, and assigning an internal owner — before the first invoice or the first deliverable is due. Skipping steps here shows up later as a vendor who can't get paid because banking details were never collected, or a compliance gap that surfaces during an audit because a required certificate was never requested. An agent running vendor onboarding works a fixed checklist against every new vendor so nothing depends on someone remembering what the last onboarding required.
Onboarding gaps are invisible until they cause a downstream failure — an invoice bounces because W-9 or banking details were never captured, or a vendor turns out to need a security review that nobody flagged until they already had system access. The checklist itself is rarely the hard part; the hard part is that onboarding tends to happen once per vendor, gets handled ad hoc by whoever signed the deal, and the details live in that person's inbox rather than a shared system. A new vendor onboarded during a busy quarter gets a rushed, incomplete pass; six months later, finance can't find their W-9 and security can't confirm whether a data processing agreement was ever signed.
Start the checklist automatically when a new vendor agreement is executed, rather than waiting for someone to remember to kick it off manually.
Request W-9/W-8 forms and banking or payment details before the first invoice is due, and confirm they're captured in the accounting system so payment never stalls on missing paperwork.
Integration: quickbooks
Request security certifications, data processing agreements, or insurance certificates based on what the vendor relationship requires, and track what's outstanding rather than assuming it will surface on its own.
Grant system or data access scoped to what the vendor relationship requires, log exactly what was granted, and flag it for review rather than leaving broad access as a default.
Every vendor gets one accountable internal owner recorded in the vendor registry from day one, so the relationship never becomes orphaned the way undocumented onboarding tends to.
Integration: airtable
Check every checklist item is closed — tax forms, compliance docs, access, ownership — and notify the requesting team only once onboarding is genuinely complete, not merely started.
Integration: slack
The onboarding stays open and payment is blocked until the information is provided — the checklist exists precisely to prevent an invoice from being processed with missing compliance data.
No — the depth of the checklist should scale to the vendor's risk profile. A low-spend, no-data-access vendor doesn't need the same security questionnaire as one being granted API access to customer data.
Onboarding feeds the same vendor registry that ongoing management reads from, so there's no gap between "just signed" and "actively tracked" — the record is created once and stays current.
The requesting team and the newly assigned internal owner both get notified, so the vendor relationship has a clear point of accountability from its very first day.
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