Hello!
We had a message which went fine in mapping (IDOC -> proxy) / integration engine (check flags in sxi_monitor) but stopped in Adapter Engine with status "To be delivered". No jammed queues or anything. It didnt help to restart the message, it was just looping. We had to restart one of the PXI-servers and after that it worked succesfully.
Any ideas what could have caused this or how I can fault-trace / debug this?!