[Case Study] What is RPA? Business Process Automation Tools and Real-World Use Cases

RPA is an automation tool introduced to improve operational efficiency and reduce costs within companies. In recent years, the adoption of RPA has grown rapidly due to work-style reforms and increasingly serious labor shortages. As a result, RPA has attracted attention not only from large enterprises but also from small and medium-sized businesses.

In this article, we explain what RPA is as a technology that automates business processes, and introduce the types of tasks suitable for RPA implementation, along with concrete examples and real-world use cases.
RPA stands for Robotic Process Automation, a technology that replaces routine tasks with software robots. By doing so, companies can improve work efficiency while reducing operational costs.

In particular, RPA is highly suitable for repetitive administrative tasks such as data entry, aggregation, email delivery, and report creation. Across various industries—including finance, manufacturing, logistics, healthcare, and the public sector—RPA adoption has helped address labor shortages and significantly promote work-style reform.

[With Specific Examples] What Tasks Can Be Handled by RPA?

RPA can handle a wide range of computer-based tasks that are repetitive and governed by clear rules. By using software robots, RPA automatically executes routine work, improving efficiency while reducing human error. Today, RPA is used across many departments, and the scope of tasks that can be automated continues to expand.

Examples of Tasks That Can Be Automated with RPA

• Data Entry and Transcription

Entering data from forms, emails, or Excel files into designated systems.

• Journal Entry in Accounting Systems

Automatically recording financial transactions based on available data.

• Invoice and Delivery Note Issuance

Automatically creating, sending, and storing billing documents.

• Standard Email Sending

Sending emails based on predefined templates at specific times or conditions.

• Website Information Collection

Periodically collecting data such as prices, inventory status, or product information.

• Attendance and Time Tracking Management

Collecting and processing working-hour data for payroll purposes.

• Inventory Management

Monitoring stock levels and automatically updating inventory data.

• Customer Data Registration and Updates

Managing customer information in CRM systems or internal databases.

• Product Ordering and Order Processing

Handling order workflows from receipt to recordkeeping.

• Competitor Price Research

Collecting and comparing pricing data from competitor websites.

• Report Creation

Aggregating data from multiple sources and generating reports.

• Customer Review Collection

Extracting ratings and comments from specific platforms.

• Application Form Processing

Handling application data such as receipt requests or claims.

• Partial Customer Inquiry Handling

Collecting and classifying inquiries before forwarding them to relevant teams.

[By Department] Examples of RPA Usage in Business

RPA is a system that automates routine, rule-based tasks, making it widely applicable across departments—from back-office to front-office functions. Below are examples of RPA usage by department, including real-world case studies.

Example 1: Accounting Department

Accounting departments handle many repetitive administrative tasks each month, such as invoice processing, expense reports, journal entries, and monthly closing. When performed manually, these tasks are time-consuming and prone to input errors.

By implementing RPA, processes such as invoice data entry and accounting system registration can be automated, improving both speed and accuracy.

Case Study: Invoice Processing Automation

A manufacturing company manually processed over 100 invoices per month, resulting in frequent errors and lengthy verification times. By implementing RPA integrated with OCR, invoices in PDF format were automatically read, and data such as client name, date, and amount were transferred directly into the accounting system.
As a result, the workload was reduced by approximately 40 hours per month, and input errors were nearly eliminated.

Case Study: Journal Entry Efficiency Improvement

A retail company previously entered expense reimbursement journals manually every day. After introducing RPA, data from the expense application system was automatically extracted and recorded.

Now, staff only perform final checks, reducing working time to less than half.

Case Study: Payment Reconciliation Automation

Another company spent significant time reconciling bank deposits with accounts receivable. With RPA, deposit and receivable data were automatically compared, and only discrepancies were reported. Monthly reconciliation time was reduced by about 70%.

Example 2: Sales Department

In addition to sales activities, sales teams handle administrative tasks such as customer data entry, report creation, and quotation management, which are time-consuming and error-prone.

RPA automates routine work, allowing sales representatives to focus on high-value activities.

Case Study: Daily Sales Report Automation

Previously, daily sales reports were often delayed and inconsistent. With RPA, sales activities were automatically extracted and formatted into reports.
Sales staff no longer write reports manually, and managers can monitor performance in real time.

Case Study: Automatic CRM Registration

At an advertising agency, lead data from exhibitions and web forms was manually entered into CRM systems. RPA now classifies and registers data automatically, improving response speed and preventing lost opportunities.

Example: Weekly Sales Report Automation

A real estate company automated weekly sales reporting by collecting data from SFA systems, generating charts, and producing PDF reports. Working time was reduced by up to 90%.

Example 3: Marketing Department

Digital marketing involves many routine tasks such as website analytics, social media analysis, and advertising performance tracking. While routine, these tasks require speed and accuracy.

RPA is used for periodic data collection, report creation, and market research.

Case Study: Report Creation Automation

An IT company previously collected data from multiple tools manually each week. With RPA, data from Google Analytics and advertising platforms is now automatically aggregated.
Report creation time was reduced from 5 hours to under 30 minutes per week.

Case Study: Competitor Website Monitoring

An apparel company uses RPA to monitor competitor websites daily and send notifications when new products or promotions appear, enabling faster and more accurate marketing responses.

Example: Social Media Post Scheduling

A food manufacturer automated social media posting according to predefined schedules, significantly reducing errors and workload.

Example 4: General Affairs Department

This department handles support tasks such as inventory management, internal documentation, and supply ordering.

Case Study: Contract Renewal Management

RPA monitors contract expiration dates and sends automatic notifications, virtually eliminating renewal delays.

Case Study: Supply Ordering Automation

In a manufacturing company, RPA detects inventory levels below thresholds and automatically creates purchase orders.
Ordering time was reduced by 90%, and stock shortages were prevented.

Case Study: Internal Newsletter Distribution

Company newsletters are now distributed automatically on schedule, eliminating dependence on specific individuals.

Example 5: Human Resources and Labor Department

HR departments manage extensive administrative processes, including onboarding, attendance, payroll, and annual tax adjustments.

Case Study: Employee Onboarding Automation

An IT company automated new employee registration across multiple internal systems using RPA.
Working time was reduced by over 80%, and input errors were nearly eliminated.

Case Study: Attendance Calculation Automation

RPA collects attendance data and automatically detects overtime, supporting labor compliance.

Case Study: Year-End Tax Adjustment Automation

At a retail company, RPA verifies tax documents and inputs data into payroll systems. Workload during peak periods was reduced by approximately 70%.

Failed RPA Implementation Examples

Although RPA is highly effective, not all implementations succeed. In practice, some RPA projects fail to deliver expected results or even create new issues.

Example 1: Incorrect Task Selection

RPA success depends heavily on selecting appropriate tasks. Failures often occur when tasks:

• Have many exceptions
  
• Require human judgment
  
• Are not standardized
  
• Depend heavily on individuals
  

Forcing such tasks into automation leads to complexity, instability, and limited benefits.

Example 2: “Black Box” Operations

When RPA design and maintenance are fully outsourced without internal understanding, operations become opaque.
If errors or system changes occur:

• Issues cannot be handled internally
• Business processes may stop
• Vendor dependency increases
  

Key Points to Consider When Implementing RPA

For RPA implementation to be successful and sustainable, there are several important things that need to be considered from the first:

Point 1: Clearly Define Automation Targets

RPA works best for tasks that:

• Are repetitive
• Follow clear rules
• Do not require human judgment
• Have stable workflows

Point 2: Start Small

Implementing RPA at a large scale from the beginning increases complexity and risk.
Recommended approach:

• Start with simple processes
• Build small successes
• Gradually expand automation

Summary

In this article, we covered:

• What RPA is and its role in business process automation
• RPA use cases by department
• Examples of failed RPA implementations
• Key considerations for successful RPA adoption
  

RPA can automate many tasks, but not all processes are suitable. Selecting the right tasks and adopting a well-planned implementation strategy are essential for success. When considering RPA adoption, use the failure examples and key points above as references to ensure your RPA investment delivers sustainable and optimal results.