MQXT_* (Exit Identifiers)
| MQXT_API_CROSSING_EXIT | 1 | X'00000001' |
| MQXT_API_EXIT | 2 | X'00000002' |
| MQXT_CHANNEL_SEC_EXIT | 11 | X'0000000B' |
| MQXT_CHANNEL_MSG_EXIT | 12 | X'0000000C' |
| MQXT_CHANNEL_SEND_EXIT | 13 | X'0000000D' |
| MQXT_CHANNEL_RCV_EXIT | 14 | X'0000000E' |
| MQXT_CHANNEL_MSG_RETRY_EXIT | 15 | X'0000000F' |
| MQXT_CHANNEL_AUTO_DEF_EXIT | 16 | X'00000010' |
| MQXT_CLUSTER_WORKLOAD_EXIT | 20 | X'00000014' |
| MQXT_PUBSUB_ROUTING_EXIT | 21 | X'00000015' |