What is business process automation?
Business process automation is software doing the repetitive, rule-based steps a person currently does by hand. Copying data between systems, generating a document from a form, routing an approval, sending a follow-up. It does not mean replacing judgment. It means removing the work that never required judgment in the first place.
The detail
Most companies already automate something without calling it that. An email rule is automation. A spreadsheet formula is automation. Business process automation is the same idea applied deliberately, across a whole process rather than one step of it.
A process is a good candidate when three things are true. It happens often, it follows rules that can be written down, and the outcome is the same every time. Entering an order into two systems qualifies. Deciding whether to extend a customer's credit does not, although the work of gathering what is needed to decide usually does.
The value is rarely the hours, though hours are how it is normally sold. The larger returns are accuracy and speed. A person copying figures between systems will eventually make a mistake, and that mistake surfaces weeks later in an invoice or a shipment. Automation performs the same step identically every time, and when it fails it tends to fail loudly rather than quietly.
The mistake worth avoiding is automating a bad process. Speed applied to a process that does not make sense produces the same wrong outcome faster and at scale. Map how the work actually moves before deciding what to remove, not how the procedure document says it moves.