Which of the following is an impact of incorrect invoice processing?

Incorrect invoice processing can lead to significant financial discrepancies and potential disputes. When invoices are not accurately processed, it creates inconsistencies in recorded expenses and liabilities, which can result in erroneous financial statements. These discrepancies hinder a company's ability to track its financial health and may lead to difficulties in budgeting and forecasting.

Moreover, inaccuracies can lead to disputes with vendors over payments, as discrepancies might suggest that bills are either overpaid or underpaid. This can create a breakdown in vendor relationships, affect trust, and lead to protracted negotiations or even legal actions.

In contrast, the other options refer to positive outcomes that are typically not associated with incorrect invoice processes. Higher operational efficiency, increased customer satisfaction, and improvement in cash flow are results of accurate financial operations, highlighting the importance of proper invoice processing.