3828790 - Error: "An error occurred while moving an expense to selected Expense Report" when moving an ExpenseIt expense with a different currency than the report reimbursement currency

Why do I receive the error "An error occurred while moving an expense to selected Expense Report" when moving an ExpenseIt expense with a different currency than the report reimbursement currency?

Users may encounter the error message "An error occurred while moving an expense to selected Expense Report" when attempting to move an ExpenseIt expense to an expense report if the required exchange rate is not available in the system. , KBA , CON-EXP-ADM-CUR , Currency Admin , CON-EXP-ADM-MOP , Monitor Payees , Problem