# SendInboxMessageRequestButtonsInner
## Properties
**r#type** | **Type** | Button type. phone is Facebook only. Ignored on WhatsApp (buttons always render as reply buttons). (enum: url, postback, phone) |
**title** | **String** | Button label (max 20 chars) |
**url** | Option<**String**> | URL for url-type buttons (Facebook/Instagram only) | [optional]
**payload** | Option<**String**> | Payload for postback-type buttons. On WhatsApp, this is the reply ID returned on the message.received webhook when the button is tapped. | [optional]
**phone** | Option<**String**> | Phone number for phone-type buttons (Facebook only) | [optional]
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