"Process Automation and RPA: When to Use Which?"

In business, "automation" isn't a single thing. Workflow automation and RPA (Robotic Process Automation) are often confused, but they solve different problems. To decide correctly, you need to know the difference.

01. What Does Workflow Automation Do?

Workflow automation (BPM or workflow systems) manages the flow of information between processes, approval steps and triggers. When a request is opened, it defines who it goes to, within what time it will be approved, and which system it reflects into next.

02. What Does RPA Do?

RPA is different: a "robot" (software) performs the operation on top of existing systems by imitating mouse and keyboard. For example: every morning it downloads an Excel file, uploads it to the ERP, and emails the result. It takes over such routine but cross-system tasks.

03. When to Use Which?

The decision is roughly this:

• If the process contains human approval and decision points: workflow automation
• If the process is mechanical, repetitive system operations a person performs: RPA
• If the process contains both: an integrated solution (workflow → RPA → workflow)

04. The Limits of RPA

RPA is powerful but limited:

• It can break when the source system's screen changes (maintenance cost)
• It can't make decisions (it only imitates)
• It's open to identity and permission confusion

For this reason, in the modern approach, RPA is positioned as the second option, preferred when API-based solutions aren't possible.