I would like to apply price breaks for purchases similar to the quantity price breaks you can apply to items for sales
Purchase contracts would be your best bet. I believe Advanced Purchasing is required to utilize this feature though. Otherwise there are also Quantity Pricing Schedules, but the contract feature is more robust.
Trouble importing a CSV to update inventory
How do I use NetSuite Professionals website?
How to update a record using external id through NetSuite Restlet?
Post json response to suitelet to create sales order in Netsuite. We are using version 2 *@NApiVersion 2.x
Custom Print Button in Inventory Transfer
