Error - There are no new periods in GL to copy
No periods are copied from GL calendar and you cannot open next project accounting (PA) period. However, next month is defined in the GL calendar.
1. Open the calendar periods form (Navigate : Setup/ Financials / Calendar / Accounting)
2. Query up the defined GL calendar
3. Add new periods to the calendar
4. Open the PA periods form (Navigate : Setup / System / PA Periods)
5. Click the 'Copy from GL' button again
The new periods would be populated.