An internal auditor is reviewing the sales and collections processes of an e-commerce organization that is facing budget constraints. The auditor found that the accountant did not perform reconciliations of cash collections in a timely manner. The auditor determined that the reason was timing errors in the interfacing process between the customer payments portal and the accounting system. The current customer payments portal was recently implemented to replace a legacy system. The finance manager is in charge of the customer payments portal. Which of the following recommendations is the most appropriate to address the root cause of this deficiency?