How to handle short fall of customer payments?

AI generated answer (using internal Slack threads):

To handle shortfalls in customer payments, you can create a Journal Entry (JE) that debits and credits Accounts Receivable (AR) for the same amount for the customer. This will represent the remaining owed amount as outstanding on the customer's account without short-paying an invoice. For prepayments or customer deposits invoicing, you can use NetSuite's deposit flow. You can also use Billing Schedules to manage the invoicing process. More information about Billing Schedules can be found in the NetSuite Online Help documentation. If a customer overpays their order, their payment essentially becomes a credit memo which is another form of payment. This payment should stay with the customer record and be applied the next time an invoice is created. Alternatively, you can issue a refund now and be done with it. If the customer is asking for a credit memo, you can create a dummy one in your sandbox. Another option is to refund it to a holding account and then issue a credit memo against that holding account. ****** Disclaimer: This response was generated by an artificial intelligence assistant based on previous conversations from multiple Slack channels, and may contain inaccuracies or mistakes. ******