1.3.5.2 Administration Acknowledgments

Administration acknowledgment messages are system-generated messages that are sent to administration queues specified in a packet. These messages are express or recoverable depending on the message being acknowledged.

Administration acknowledgment messages are sent by using an existing active session to the queue manager on the original sender, or, if no such session exists, the messages are sent by establishing a new session to the queue manager on the original sender.

New sessions, if any, are established over the transport type that is specified in the UserHeader.AdminQueue format name of the original message if the Flags.AQ field is 0x7. When the Flags.AQ field is not 0x7, the default transport is TCP/IP.

These messages can indicate whether a message has reached its destination queue or whether the message has been retrieved. Additionally, these messages can indicate the reason for the loss of a rejected message. Administration acknowledgment messages are used by application logic to identify the status of sent messages.