WhatsApp Error 1026: Message delivery failure

What this means#

The message could not be delivered to the recipient for one of several possible reasons.

Why it happens#

• Recipient doesn't have WhatsApp.
• Recipient is using an outdated app version.

How to resolve it#

Confirm the recipient has WhatsApp installed and is on a current app version.

Learn more#

See Meta's official reference for WhatsApp error code 1026.

Still stuck?#

If the error persists after trying the steps above, note the exact error code (1026) and reach out to support with the message details — the code tells us exactly what WhatsApp rejected.