The RexxAddQueue return values are:
──────────────────────────────────────────────────────────────────────── 0 RXQUEUE_OK The queue function has completed successfully. ────────────────────────────────────────────────────────────────────── 5 RXQUEUE_BADQNAME The queue name is not valid, or you tried to create or delete a queue named "SESSION." ────────────────────────────────────────────────────────────────────── 6 RXQUEUE_PRIORITY The order flag is not equal to RXQUEUE_LIFO or RXQUEUE_FIFO. ────────────────────────────────────────────────────────────────────── 9 RXQUEUE_NOTREG The queue does not exist. ────────────────────────────────────────────────────────────────────── 12 RXQUEUE_MEMFAIL There is insufficient memory available to complete the request. ────────────────────────────────────────────────────────────────────────