How to modify a journal created from an amortization journal template?

AI generated answer (using internal Slack threads):

To modify a journal created from an amortization journal template, you need to go to the originating transaction and modify the start and end dates there. You should be able to do this even if the period is closed, if you have the "Allow non-GL changes" option chosen for the period. However, this assumes you haven't posted anything off of the schedule. If you have, it's not recommended to change it except via a Journal Entry (JE). If you're looking to change the descriptions in the amortization journal entries, which are automatically set to “Amortization Source” and “Amortization Destination”, it's possible to do this through a customization from NetSuite Advanced Customer Support (ACS) or other third-party options. This would involve running a scheduled script to update the records in question. If you're facing issues with the start and end dates on the amortization schedule not being correct after a CSV import of Journal Entries, you need to update the dates on the journal, not on the amortization schedule. If the dates on the journal are correct but the amortization schedule still picks up the incorrect dates, you can refer to NetSuite's Answer ID 7867 on how to mass update amortization schedules. ****** Disclaimer: This response was generated by an artificial intelligence assistant based on previous conversations from multiple Slack channels, and may contain inaccuracies or mistakes. ******