Overview:

Concur Sync fails with the following error, example pattern: 

<Error>
   <Message>Unexpected error.Please contact Developer Support</Message>
   <Server-Time>2018-11-03T11:01:25</Server-Time>
   <Id>FE3E8C23-70AC-4BCA-9C97-C5C711F38136</Id>
</Error>

Root Cause:

The issue is caused by a Concur outage.

Solution: