If a specific subtab is not selected when creating a custom field, what subtab will the field display?

When creating a custom field in Oracle NetSuite, the 'Display' tab in the setup options allows the user to specify a subtab for the field's placement on a record form. If the 'Subtab' field is left blank, NetSuite's default behavior is to automatically place the new custom field on a subtab named 'Custom'. If a 'Custom' subtab does not already exist on the form, NetSuite will create it to house any custom fields that are not explicitly assigned to another subtab. This ensures that all custom fields are organized and accessible even without specific placement instructions.

A. Main: The 'Main' subtab is reserved for the primary, standard fields of a record and is not the default location for unassigned custom fields.
B. Items: The 'Items' subtab is specific to transaction records (e.g., Sales Orders, Invoices) and is not a universal default for all custom field types.
C. System Information: This subtab is used for system-generated, non-editable metadata about the record, not for user-defined custom fields.

1. Oracle NetSuite Help Center. (2023). SuiteAnswers, Creating a Custom Field. Answer ID: 9924. In the section "Setting Display Options for a Custom Field," the documentation states: "In the Subtab field, select the subtab where you want this field to be displayed. If you do not select a subtab, the field is displayed on a subtab called Custom."

2. Oracle NetSuite Help Center. (2023). SuiteBuilder, Customizing Forms, Fields, and Records. In the chapter on "Custom Fields," the guide explains the display properties: "When you do not select a value in the Subtab field on the Display subtab of a custom field page, the field is automatically displayed on a subtab titled Custom on forms that include the field."