Revenue recognition GL date showing closed period

Hi,

We are rolling out a new OU. All the past periods (both AR and GL) are closed. Only one present period is open. When we are generating revenue, based on the rule start date of the transactions, it hitting the closed period GL date and giving us the error message "The GL date XXXXX is not in an open or a future enterable period. Please select a valid GL date or open the period.

As per my understanding all past revenue (based on rule date) should get accumulated and gets recognised in the current month. Is there something wrong with the set up. I don't think we can ask business to do bookings only with current and future accounting rule date. If the contract started 2 months back, it will need to be booked with 2 months prior rule date and we expect the past 2 months revenue should show up in the current open month.