Closing accounting period for data entry

I usually use closing year feature in MYOB to make my data can’t edit.

Does Manager have this feature? And if not what would we do to handling closing year, because this feature is very important in order to no longer be changed except by entry correcting journal in the current year.

What should I do if I receive the goods in December, 2014 and invoice in January 2015, while I was selling goods in December 2014. I use the accounting period January-December 20xx.

It’s not yet possible to lock accounting period from editing.

Regarding the second part of your question, you should be recording transactions as they happen. If you receive goods in December 2014 without purchase invoice, you should record this event right away as a journal entry.