Can I set an Open GL Period Back to Future??

[Vantapati]

Hello All,

The business user has opened 2 GL Periods by accident. 10-11 and 11-11 both opened on 9th Dec. We only want 10-11 open. Nothing has posted to 11-11. Already raised an SR with Oracle Support, but out of curiosity want to know if anyone has already faced this issue earlier and the solution? What are the implications of setting 11-11 back to Future?

Thanks,
Vara