APP-AR-11228 while creating a manual invoice with accounting rules

Hi All,

I am in 12.1.3. I am trying to create a manual invoice with accounting rules spread over 3 periods. However I am getting APP-AR-11228, please define the periods in which the revenue is recognized  or credited...

I have verified the period type in the accounting rule as the same as the period type used for the accounting calendar.

I have checked the AR periods. The future periods have been defined but are in 'Never opened' status. Can you confirm whether it is just  enough to define these periods but do we need to open these future periods for completing the AR transaction