I have an instance of a synchronous scenario (HTTP to RFC) that just stopped this morning before the call adapter step. This scenario ran successfully yesterday and this afternoon. No changes have been made for weeks. The last step to execute in SXMB_MONI was technical routing. I've compared this with a working message and the step looks fine. Rather than a chequered flag next to the message it has a grey circle. When I hold the cursor over the circle the test 'LOG MESSAGE' appears.
I've checked the specific communications channel in 'Comms Channel Monitoring' in RTWB and I can't find the message. The message before and after this message are shown. I've checked the Message Monitoring in RTWB and I can see the Outbound message which has a status of to be delivered.
Obviously the Outbound message cam into XI but doesn't appear to make it as far as the RFC adapter. Is there anywhere else I should be looking to find out why this failed or what caused it not to reach the RFC adapter?