Use the Register Customer Payments page balance internal accounts by using actual cash figures to ensure that payments are collected. You can quickly verify and post individual or lump-sum payments, process discounted payments, and find the unpaid documents. Payments for different customers that have different payment dates must be posted as individual payments. Payments for the same customer that have the same payment date can be posted as a lump-sum payment. Lump-sum payments are useful, for example, when a customer has made a single payment that covers multiple sales invoices.