What is an "Object" in NetSuite?
An object in NetSuite is a record, or repository of details about an accounting entry, activity, or item. We could refer to it as a NetSuite record, or even a transaction, except it would then get confused with NetSuite Records and Transactions (of which NetSuite has other, different definitions for).
Each of these are separate examples of "objects": Invoice, Sales Order, Refund, Payment, Customer Deposit, Deposit, Customer.
Objects Paystand does not support are things like Quotes (yet), Transfers (not to be confused with a Paystand Transfer), Adjustments, Inventory, or Insertion Orders.