Unable to change period on an invoice. It lets me edit it, but when I save it it doesn't edit if that makes sense the old period still remains after saving

AI generated answer (using internal Slack threads):

Based on the conversations, it appears that the issue you're facing is related to the tax period of an invoice in NetSuite. Once an invoice is saved, the tax period is automatically assigned based on the transaction date. If the tax period for that date is still open, it will be assigned to the invoice even if the posting period is different. If you want to modify the tax period, you might face difficulties as it seems that this field is not directly editable. The system assigns the tax period based on the transaction date at the time of saving the invoice. If you need to change the tax period, you might need to adjust the transaction date, provided the desired tax period is still open. As for editing an invoice that is paid in full, as long as the period is open, you should be able to edit it. If the period is closed, you would need to reopen it to make changes. ****** Disclaimer: This response was generated by an artificial intelligence assistant based on previous conversations from multiple Slack channels, and may contain inaccuracies or mistakes. ******