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Business
Use of usernames by business accounts on the WhatsApp Business Platform, including BSUID validation.
Covers the endpoints for validating a BSUID, validating business usernames, resolving contacts, and normalizing WhatsApp Cloud API webhooks — the username use case applied to shops, customer support, and service providers.
Last updated July 5, 2026
Frequently asked questions
What is a BSUID?
It's the business-scoped identifier WhatsApp's Cloud API uses to validate and reference a business username — see the API entry for the validation endpoint.
Do business usernames work differently from personal ones?
The underlying link/QR mechanics are the same; the difference is the extra validation layer (BSUID) built for the Business Platform's webhooks and integrations.