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: