...
A: Do not close the 12th period until you have run the Year End Wizard: if you closed the period, simply reopen following the steps in the “Closing and Opening Periods” section section above.
Q: What if I need to make adjustments to the previous year and I have already run the Year End Wizard?
A: If you need to make adjustments to the previous year after you ran the Year End Wizard, simply reopen the period (all subsequent closed periods must be reopened too). Example: If you are in June 2018 and need to reopen November 2017, you will need to reopen all closed periods in 2018 and December 2017 before you can reopen a batch or make a new JE in November 2017. Follow the steps in the “Closing and Opening Periods” section section, make your adjustments, and then rerun the Year End Wizard.
...