To navigate to the customer payment section in NetSuite, go to Transactions > Customers > Accept Customer Payments.
Then select the name of the customer who wants to make a payment.
Under the Apply subtab, enter the payment amount.
Under the Invoice subtab, all the invoices for the selected customer will be displayed.
Select the invoice you want to make a payment and click on Save.
The customer payment will be created.
Note: To list the invoices under the Invoice subtab, ensure that the subsidiary and location are the same in both the customer record and invoice record. Once this is confirmed, all approved invoices for the current customer will be displayed in the Payment record under the Invoice subtab.