System evaluates ALL banking rows for the Employee. If any of them are blank the system looks for the IBAN. When it sees that IBAN is blank it throws the error.
Navigation: Financial Management>Travel and Expenses>Manage Employee Information>Update Profile. Search for the employee and click on the Bank Accounts tab.
Three work arounds:
1) Copy all of the bank info from the Payment Account into the expense account- The travel advance will go to the default account (most reliable)
2) Mark USA Bank in the blank account- Again payment will go to the default account
3) If the system will let you delete the blank row.