[chrisplough]

In that case, the logs aren't giving enough information to effectively troubleshoot. All of the relevant error information is below:

endPoint is http://rstn-lin15.us.oracle.com:7777...efDataStlToOtm
Unexpected Error Occured
Exiting SyncRefDataToOtm.sendDocument

This could be a lot of things, including that the BPEL flow WshSendRefDataStlToOtm is not deployed onto your server, or is somehow not able to connect back to the EBS DB. I'd recommend investigating through the BPEL Console and analyzing the debug flow chart for this failed integration flow, to see exactly in which point in the flow failed and to see if it gives a more specific error message.

After that, you can post more details here and we'll try to help. I'd also recommend opening an issue with your internal Oracle support resources -- that way you have multiple paths open in order to get this resolved quickly.

--Chris