WhatsApp error 133010 Number not registered on the WhatsApp Business Platform

Needs action from you first You fix this Sending and connection errors

Short answer

This phone number is not registered on the WhatsApp Business Platform, so the send did not go through. The number has to be registered before it can be used for sending.

Checked against Meta docs on 2026-08-24 Official source

How to fix it

Register the phone number on the WhatsApp Business Platform.
Send the message again once the number is registered.

Meta's official wording for this code

Description Phone number not registered on the WhatsApp Business Platform. Meta's suggested solution Register the phone number before trying again.

Other codes in the same category

Common questions about this code

What does WhatsApp error 133010 mean?

This phone number is not registered on the WhatsApp Business Platform, so the send did not go through. The number has to be registered before it can be used for sending.

Can I just send the message again?

Not before the cause is addressed. Complete the steps above, then send again.

Is this a problem with my account?

You resolve this from your own account settings.

Still hitting this error?

Send us the code and a screenshot and we will read it with you. With LetsBot, the reason each message failed appears next to it in the campaign report instead of a bare number.