Can I back date an invoice if my accounting period is closed?

[monique · Accepted solution]

Answer:

You can not post any transactions in the accounting period if you have already closed the period. You will have to post in the next open accounting period. 

If you need to post a transaction in a closed accounting period, you must re-open the period, but this is not a best practice to re-open the accounting period.

https://knowledgecenter.zuora.com/CC_Finance/E_Accounting_Periods/H_Reopen_accounting_periods