If you encounter a scenario where the connector will not integrate the Concur data into Intacct (due to Intacct/concur update, coding, etc.), one 'last resort' would be to import the concur extract data into the corresponding fields in the Intacct template.
The Intacct import templates can be found by going to Company > Setup > Import Data. This will bring up a list of all import templates available. Scroll to the one that is needed, and click “Template” on that row.