WhatsApp Error 1: API unknown error

What this means#

An invalid request was made, or there was a potential server-side issue.

Why it happens#

• Malformed request.
• Temporary server problem.

How to resolve it#

Check the WhatsApp Business Platform status page and verify the request matches the endpoint's expected format.

Learn more#

See Meta's official reference for WhatsApp error code 1.

Still stuck?#

If the error persists after trying the steps above, note the exact error code (1) and reach out to support with the message details — the code tells us exactly what WhatsApp rejected.