Impact of posting January invoices on the current fiscal year if the month of December and/or previous fiscal year is not closed

QUESTION: A few of our clients have requested invoices dated January.  Are we okay to post invoice in the current year/month prior to closing the previous year?

RESPONSE: Yes, you can generate and post invoices with transaction dates in January before closing the month of December or the previous year. The transaction is used to journalize the revenue into the month of January.