how to add NetSuite native items/expenses sublist to custom records in NetSuite

AI generated answer (using internal Slack threads):

To add items/expenses to custom records in NetSuite, you can use the following steps: 1. Create a Custom Record: Navigate to Customization > Lists, Records, & Fields > Record Types > New. Define the custom record and save it. 2. Add Fields to the Custom Record: Navigate to the custom record you just created and click on 'New Field'. Define the field and save it. Repeat this step for all the fields you want to add. 3. Add Items/Expenses to the Custom Record: Navigate to the custom record and click on 'New Record'. Fill in the fields with the item/expense details and save it. In the context of Purchase Orders, you can use non-inventory items to record expenses. For example, if you're purchasing 6 months of a service, you can use a non-inventory item with quantity = 6 and rate = 10K. This is considered best practice as it reduces the opportunity for errors. For Purchase Requisitions, it seems there is a known defect (Defect 428430) that prevents adding custom fields to the Expenses sublist on custom Requisition forms. However, you can add custom fields to the Expenses sublist on standard forms that have been customized. For personalized vendor searches, you can add fields like annual spend, payment count/type, annual invoice/PO count, DPO by creating a saved search. If the fields don't exist, you can create custom fields on the vendor record and then create a saved search that will determine the values that go into those fields and load them. ****** Disclaimer: This response was generated by an artificial intelligence assistant based on previous conversations from multiple Slack channels, and may contain inaccuracies or mistakes. ******