The fallback payload.
Indicate whether the event is an echo.
Indicate whether the event is sent to a standby channel.
Message ID.
Reference to the product id when the user sends a message from Facebook Shops product detail page.
Reference to the message id (mid) that this message is replying to.
The user that triggered the webhook event.
Generated using TypeDoc
FallbackMessageEvent will occur when an unsupported message shared by user has been sent to your Page.
messages
Check official reference.