Credit notes get published in one of the three ways:
If the credit note in Dext Prepare is marked as 'Paid' then it goes to KashFlow as paid.
If the credit note in Dext Prepare is marked as 'Not Paid' then it goes to KashFlow as 'Overdue' if its date is in the past.
If the credit note in Dext Prepare is marked as 'Not Paid' then it goes to KashFlow as 'Not Paid' if its date is in the future.