Agentic AI, explained
Agentic AI vs. RPA vs. traditional workflow automation in AP
RPA follows rules until it hits an exception. Agentic AI investigates the exception. Here’s the practical difference for AP teams.
What RPA actually does well (and where it stops)
RPA is excellent at consistent, rule-matching work: a PO that matches exactly, a vendor that’s always coded the same way. It stops the moment reality doesn’t match the rule — a pricing variance, a partial shipment, a missing PO — at which point it either fails silently or dumps the exception on a human with no added context.
Where workflow automation adds a layer, but not judgment
Workflow automation (routing, approvals, notifications) organizes who handles an exception — it doesn’t help decide what to do with it. That’s still a manual judgment call, just a better-routed one.
What changes when AI is agentic
An agentic system investigates before it escalates: it checks the vendor’s history, cross-references the contract or PO terms, and either resolves the exception itself (with a documented rationale) or hands it to a human with the investigation already done.
A practical comparison
| RPA | Workflow automation | Agentic AI | |
|---|---|---|---|
| Handles rule matches | Yes | Yes | Yes |
| Handles exceptions | No — fails or stalls | Routes it, doesn’t resolve it | Investigates and often resolves it |
| Explains its reasoning | N/A | N/A | Yes — rationale plus a confidence score |
Common questions
- Should we rip out our RPA?
- No — RPA still handles clean, rule-matching work efficiently. Agentic AI is what you add for the share of volume that RPA can’t touch.
- Is agentic AI more expensive to run?
- It’s typically priced around usage and outcomes rather than replacing your existing automation spend — worth modeling against the time currently lost to manual exception handling.
- Which invoices still need pure rules-based handling?
- High-volume, low-variance invoices from stable vendors are often fine on rules alone — agentic AI’s value concentrates where variance and judgment are highest.