what is the way to bill a sales order line if your days in advance can vary?

AI generated answer (using internal Slack threads):

Based on the conversations, the way to bill a sales order line if your days in advance can vary can be achieved through a combination of custom billing schedules and scripting. If you know the event date, you can calculate the invoice dates as follows: the first invoice is standard, the second invoice date is (event date - 60 days), and the third invoice is (event date minus 14 days). However, this approach might result in a lot of custom billing schedules. To avoid manually creating them for every sales order, you can resort to scripting. The script would use the event date as a trigger to create the necessary billing schedules. Another approach mentioned is to use NetSuite's schedule billing operation. This allows you to bill a single line from a sales order, provided the 'Invoice in Advance of Fulfillment' setting under Accounting Preferences > Order Management is not set to False. If you need to change the billing schedule on an existing sales order, you can export the SO lines from a saved search, then import them with the correct billing schedule. Make sure the schedule already exists before doing this. ****** Disclaimer: This response was generated by an artificial intelligence assistant based on previous conversations from multiple Slack channels, and may contain inaccuracies or mistakes. ******