Which option is a valid method to trigger a process via external integration?

Which option is a valid method to trigger a process via external integration?

• A. Call a web API
• B. Start a Process smart service
• C. Subprocess
• D. Schedule a timer

Answer: (A)

Externally triggering a process in Appian is done by calling a Web API that starts a process instance. A Web API exposes an HTTP endpoint that external systems can call, passing input data that maps to the process variables, and the API logic creates a new instance of the desired process model. The other options operate inside Appian or on a schedule: starting a Process smart service runs within Appian’s workflow, a subprocess is a nested flow inside a parent process, and scheduling a timer fires based on time rather than an external event.

Externally triggering a process in Appian is done by calling a Web API that starts a process instance. A Web API exposes an HTTP endpoint that external systems can call, passing input data that maps to the process variables, and the API logic creates a new instance of the desired process model. The other options operate inside Appian or on a schedule: starting a Process smart service runs within Appian’s workflow, a subprocess is a nested flow inside a parent process, and scheduling a timer fires based on time rather than an external event.