There are two ways you can apply Customer Deposits to Invoices:
- Go to Transactions > Customers > Record Customer Deposits > List (Administrator), or
- Go to Transactions > Customers > Accept Customer Payments > List (Administrator).
Both of this options only allows you to apply Customer Deposits to Invoices on a per Customer basis, and cannot be done in bulk. To read more about Applying Customer Deposits, please refer to SuiteAnswer article 9109.
Currently, importing Deposit Applications via CSV is not supported. Additionally, NetSuite does not permit the application of these two transactions using the Customer Payment record through CSV; this action can only be performed through the user interface. Using scripting remains the sole solution for bulk processing in this scenario.