WhatsApp Business API number approval process

Understand how WhatsApp approves and verifies the phone number you connect to the API.

The WhatsApp Business API number approval process verifies ownership, display name, and connectivity before you can message customers.

Key takeaways

Use a number that can receive SMS/voice and is not active on WhatsApp apps.
Submit a display name that matches your brand; mismatches cause rejection.
If migrating numbers, follow Meta’s porting steps to keep reputation.

Pre-approval checks

Confirm the number is free (not registered on WhatsApp or Business app).
Ensure you control SMS/voice for verification.
Prepare a display name aligned to your brand and website.

Verification steps

Add the number in your provider dashboard.
Choose SMS or voice to receive the verification code.
Enter the code to bind the number to your WhatsApp Business account.
Submit the display name for review.

Handling migrations

If you are moving from another BSP, coordinate porting so downtime is minimal. Backup templates and ensure both providers align on the migration window.

FAQs

How long does number approval take?

Verification is usually instant after you enter the code; display name review may take a few minutes to a few hours.

Can I re-use a number from WhatsApp Business app?

Yes, but you must unregister it from the app or migrate it. Once on the API, it will not work in the app.

What if my display name is rejected?

Align it with your legal/brand name and domain, avoid generic terms, and resubmit.

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