3811269 - How can I clear the warning message 'Code: APCODERR, Level: 99; This Expense Report/Claim cannot be completed at this time as the account for this employee has not been setup in Concur. .....'

The payment of expense report can't be processed due to no account information in the system. Please see the warning message we are getting: Code: APCODERR, Level: 99; This Expense Report/Claim cannot be completed at this time as the account for this employee has not been setup in Concur. Please submit a request to our support team by going to http://ConcurHelp (or by typing ConcurHelp in your internet browser) and completing the Problem/Issue request form requesting account setup and a member of our support team will be assigned to your request.  Upon confirmation of account setup, please create a NEW Expense Report/Claim. 
What do we need to do to clear it?

Client gets the following message when processing the expense report: 'Code: APCODERR, Level: 99; This Expense Report/Claim cannot be completed at this time as the account for this employee has not been setup in Concur. Please submit a request to our support team by going to http://ConcurHelp (or by typing ConcurHelp in your internet browser) and completing the Problem/Issue request form requesting account setup and a member of our support team will be assigned to your request.  Upon confirmation of account setup, please create a NEW Expense Report/Claim.' , KBA , CON-CA-ADM , Administration , Problem