WhatsApp error 131051 Unsupported message type

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

Short answer

Unsupported message type, so WhatsApp would not send it. The type used is not among the message types WhatsApp accepts.

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

How to fix it

Resend the content as a message type WhatsApp supports.
Check Meta's list of supported message types before trying again.

Meta's official wording for this code

Description Unsupported message type. Meta's suggested solution See Messages for supported message types before trying again with a supported message type.

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Common questions about this code

What does WhatsApp error 131051 mean?

Unsupported message type, so WhatsApp would not send it. The type used is not among the message types WhatsApp accepts.

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.