| SenderSystemId | FName | System ID of the sender when the sender is a system entity rather than a character. | |
| Sender | FB1EntityId | Entity ID of the character sending the message. | |
| Receiver | FB1EntityId | Entity ID of the character receiving the message. | |
| Type | EB1MobileMessageResponseType | Type of response (Normal, Positive, or Negative) selected by the receiver. | |
| MessageResponseScriptIds | TArray | IDs of the scripts to execute as the reply to the response. | |
| InvitationExpiredAnswerReplyStrId | FString | Expired invitation reply text captured when the response is accepted. | |