why Billing Schedule not appearing on record main section.

AI generated answer (using internal Slack threads):

The Billing Schedule field may not appear on the record's main section due to several reasons: 1. Line Level Billing Schedules: If the Line Level Billing Schedules feature is turned on, the Billing Schedule field will be moved to the items sublist instead of being on the main section of the record. You can check this by navigating to Setup > Company > Enable Features > SuiteCloud > SuiteBilling. 2. Customization: The field might be hidden due to form customization. Check the form customization settings to ensure that the Billing Schedule field is set to show. 3. Subtab Selection: Make sure you are in the correct subtab. The Billing Schedule field is usually located under the Billing subtab. 4. REST Record Service (Beta): If you are trying to access the Billing Schedule field via an API and you are getting an error, it might be because the REST Record Service (Beta) feature is not enabled. You can enable this feature by going to Setup > Company > Enable Features. However, please note that this feature is in Beta and might not be available to all users. ****** Disclaimer: This response was generated by an artificial intelligence assistant based on previous conversations from multiple Slack channels, and may contain inaccuracies or mistakes. ******