WhatsApp guides / Error 131051
WhatsApp error 131051: unsupported message type
Error 131051 means the message used a type the Cloud API does not support. Meta's fix is to check the list of supported message types and resend using one of them.
Based on Meta's official documentation, checked 18 October 2026. Sources are linked at the end; where Meta gives no fix, we do not invent one.
What Meta says it means
Meta describes 131051 simply as an unsupported message type.
What Meta says to do
- Check the supported message types in Meta's Send messages documentation.
- Send the message again using a supported type.