# SendInboxMessage400Response
## Properties
**error** | Option<**String**> | | [optional]
**code** | Option<**Code**> | Stable machine-readable reason. PLATFORM_LIMITATION covers a capability the platform does not offer (e.g. Bluesky and Reddit DMs reject media); MISSING_PARTICIPANT means the stored conversation has no recipient to send to. (enum: PLATFORM_LIMITATION, MISSING_PARTICIPANT) | [optional]
**platform_error** | Option<[**models::SendInboxMessage400ResponsePlatformError**](SendInboxMessage400ResponsePlatformError.md)> | | [optional]
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