Transactions at Period Close

 Hi,

We close receivables on day 2, which is usually the 2nd working day of the month (depending on weekends).  Is there anyway to prevent users from entering transactions once we start our close reconciliation process.  Entry users are located in various areas and although they are told to stop entering transactions for the period being closed we always seem to get a few additional transactions that then changes our reconciliation and adds time to our closing process.

Thanks,

Jason