# PostMessageMessage
## Properties
**to_user_id** | Option<**i32**> | User ID of the recipient | [optional]
**thread_id** | Option<**i32**> | Identifier for the thread. Should be blank for new threads, but when replying to an existing message, it should be set to the thread_id of the message being replied to. | [optional]
**subject** | Option<**String**> | Subject of the message | [optional]
**body** | Option<**String**> | Body of the message | [optional]
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