---
title: CFMessagePortSendRequest Error Codes
framework: corefoundation
role: collectionGroup
role_heading: API Collection
path: corefoundation/1561514-cfmessageportsendrequest-error-c
---

# CFMessagePortSendRequest Error Codes

Error codes for CFMessagePortSendRequest.

## Topics

### Constants

- [kCFMessagePortSuccess](corefoundation/kcfmessageportsuccess.md)
- [kCFMessagePortSendTimeout](corefoundation/kcfmessageportsendtimeout.md)
- [kCFMessagePortReceiveTimeout](corefoundation/kcfmessageportreceivetimeout.md)
- [kCFMessagePortIsInvalid](corefoundation/kcfmessageportisinvalid.md)
- [kCFMessagePortTransportError](corefoundation/kcfmessageporttransporterror.md)
- [kCFMessagePortBecameInvalidError](corefoundation/kcfmessageportbecameinvaliderror.md)