Setting up high priority queues

Hi Experts,

We are setting up a high priority queues in SAP PI. So I followed the steps to configure high priority queues. The messages is processing through high priority inbound (XBTI) queues. Its fine. The problem here is we are using maintain order at runtime in interface determination which is switching from EO to EOIO for every message. So how can we confirm if the messages is processing through high priority(XBTA) outbound queues?

Thanks in advance.

Regards,

Srinivas.