Case Study: Large Global Bank achieves 100% prepayment audits and 76% auto-approval with AppZen Expense Audit

Global bank counts on Expense Audit for maintaining finance data control

Large Global Bank turned to AppZen and its AI-powered Expense Audit to regain control of its finance back-office. The bank was processing roughly 250,000 expense reports a year across many countries using an outsourced, manual audit service that struggled with accuracy, efficiency and cost—electronic processing averaged 4 days and paper 22 days—so it needed a scalable, compliant solution to improve control and reduce processing time.

AppZen deployed a phased rollout of Expense Audit with tailored training and five custom AI models, enabling the bank to centralize in-house auditing and perform 100% of prepayment policy checks in under a day. The implementation delivered clear results: 76% of reports are auto-approved in minutes, manual-review items average 0.83 days, risk and costs were reduced, visibility and compliance improved, and custom models were added to AppZen’s AppStore for ongoing optimization.